Subclass |
| Title |
ClassTitle
|
| ===>
AMPLIFIERS
|
| | |
1R | ![[Patents]](../gifs/ps.gif) | WITH DIVERSE-TYPE ART DEVICE |
1A | ![[Patents]](../gifs/ps.gif) | . With process control system |
2 | ![[Patents]](../gifs/ps.gif) | WITH AMPLIFIER CONDITION INDICATING OR TESTING MEANS |
3 | ![[Patents]](../gifs/ps.gif) | WITH PLURAL DIVERSE-TYPE AMPLIFYING DEVICES |
4 | ![[Patents]](../gifs/ps.gif) | WITH MASER-TYPE AMPLIFYING DEVICE |
4.5 | ![[Patents]](../gifs/ps.gif) | PARAMETRIC AMPLIFIERS |
4.6 | ![[Patents]](../gifs/ps.gif) | . Traveling wave type |
4.7 | ![[Patents]](../gifs/ps.gif) | . . Electron beam device |
4.8 | ![[Patents]](../gifs/ps.gif) | . Gyromagnetic type (e.g., ferrite) |
4.9 | ![[Patents]](../gifs/ps.gif) | . Semiconductor type (e.g., with semiconductor diode) |
5 | ![[Patents]](../gifs/ps.gif) | WITH SOLID ELEMENT WAVE PROPAGATING AMPLIFYING DEVICE |
5.5 | ![[Patents]](../gifs/ps.gif) | . Phonon type (e.g., ultrasonic wave propagating device) |
6 | ![[Patents]](../gifs/ps.gif) | WITH HALL EFFECT TYPE MEANS |
7 | ![[Patents]](../gifs/ps.gif) | WITH CAPACITIVE AMPLIFYING DEVICE |
8 | ![[Patents]](../gifs/ps.gif) | WITH SATURABLE REACTOR-TYPE AMPLIFYING DEVICE |
9 | ![[Patents]](../gifs/ps.gif) | WITH PERIODIC SWITCHING INPUT-OUTPUT (E.G., FOR DRIFT CORRECTION) |
10 | ![[Patents]](../gifs/ps.gif) | MODULATOR-DEMODULATOR-TYPE AMPLIFIER |
11 | ![[Patents]](../gifs/ps.gif) | WITH D.C. REINSERTION CIRCUIT |
250 | ![[Patents]](../gifs/ps.gif) | WITH SEMICONDUCTOR AMPLIFYING DEVICE (E.G., TRANSISTOR) |
251 | ![[Patents]](../gifs/ps.gif) | . Including Class D amplifier |
252 | ![[Patents]](../gifs/ps.gif) | . Including differential amplifier |
253 | ![[Patents]](../gifs/ps.gif) | . . Having field effect transistor |
254 | ![[Patents]](../gifs/ps.gif) | . . Having gain control means |
255 | ![[Patents]](../gifs/ps.gif) | . . Having push-pull amplifier stage |
256 | ![[Patents]](../gifs/ps.gif) | . . Having temperature compensation means |
257 | ![[Patents]](../gifs/ps.gif) | . . Having current mirror amplifier |
258 | ![[Patents]](../gifs/ps.gif) | . . Having common mode rejection circuit |
259 | ![[Patents]](../gifs/ps.gif) | . . Having D.C. feedback bias control for stabilization |
260 | ![[Patents]](../gifs/ps.gif) | . . Having signal feedback means |
261 | ![[Patents]](../gifs/ps.gif) | . . Having particular biasing arrangement |
262 | ![[Patents]](../gifs/ps.gif) | . Including push-pull amplifier |
263 | ![[Patents]](../gifs/ps.gif) | . . Having complementary symmetry |
264 | ![[Patents]](../gifs/ps.gif) | . . . And field effect transistor |
265 | ![[Patents]](../gifs/ps.gif) | . . . And feedback means |
266 | ![[Patents]](../gifs/ps.gif) | . . . And temperature compensation |
267 | ![[Patents]](../gifs/ps.gif) | . . . And particular biasing arrangement |
268 | ![[Patents]](../gifs/ps.gif) | . . . . To eliminate crossover distortion |
269 | ![[Patents]](../gifs/ps.gif) | . . Having field effect transistor |
270 | ![[Patents]](../gifs/ps.gif) | . . Having D.C. feedback bias control for stabilization |
271 | ![[Patents]](../gifs/ps.gif) | . . Having signal feedback means |
272 | ![[Patents]](../gifs/ps.gif) | . . Having temperature compensating means |
273 | ![[Patents]](../gifs/ps.gif) | . . Having particular biasing arrangement |
274 | ![[Patents]](../gifs/ps.gif) | . . . To eliminate crossover distortion |
275 | ![[Patents]](../gifs/ps.gif) | . . Having balanced to unbalanced circuitry and vice versa |
276 | ![[Patents]](../gifs/ps.gif) | . . Having transformer |
277 | ![[Patents]](../gifs/ps.gif) | . Including field effect transistor |
278 | ![[Patents]](../gifs/ps.gif) | . Including gain control means |
279 | ![[Patents]](../gifs/ps.gif) | . . And significant control voltage developing means |
280 | ![[Patents]](../gifs/ps.gif) | . . . With delay means |
281 | ![[Patents]](../gifs/ps.gif) | . . . With time constant means |
282 | ![[Patents]](../gifs/ps.gif) | . . Having feedback means acting as variable impedance |
283 | ![[Patents]](../gifs/ps.gif) | . . . Having emitter degeneration |
284 | ![[Patents]](../gifs/ps.gif) | . . Having attenuation means in signal transmission path |
285 | ![[Patents]](../gifs/ps.gif) | . . Having particular biasing means |
286 | ![[Patents]](../gifs/ps.gif) | . Including distributed parameter-type coupling |
287 | ![[Patents]](../gifs/ps.gif) | . . Of diode type |
288 | ![[Patents]](../gifs/ps.gif) | . Including current mirror amplifier |
289 | ![[Patents]](../gifs/ps.gif) | . Including temperature compensation means |
290 | ![[Patents]](../gifs/ps.gif) | . Including D.C. feedback bias control for stabilization |
291 | ![[Patents]](../gifs/ps.gif) | . Including signal feedback means |
292 | ![[Patents]](../gifs/ps.gif) | . . Having compensation for interelectrode impedance |
293 | ![[Patents]](../gifs/ps.gif) | . . Having negative feedback |
294 | ![[Patents]](../gifs/ps.gif) | . . Having frequency-responsive means or phase-shift means in feedback path |
295 | ![[Patents]](../gifs/ps.gif) | . Including plural amplifier channels |
296 | ![[Patents]](../gifs/ps.gif) | . Including particular biasing arrangement |
297 | ![[Patents]](../gifs/ps.gif) | . Including particular power supply circuitry |
298 | ![[Patents]](../gifs/ps.gif) | . Including protection means |
299 | ![[Patents]](../gifs/ps.gif) | . Including combined diverse-type semiconductor device |
300 | ![[Patents]](../gifs/ps.gif) | . . Bipolar or unipolar (FET) |
301 | ![[Patents]](../gifs/ps.gif) | . Including balanced to unbalanced circuits and vice versa |
302 | ![[Patents]](../gifs/ps.gif) | . Including frequency-responsive means in the signal transmission path |
303 | ![[Patents]](../gifs/ps.gif) | . . Including an active device in the filter means |
304 | ![[Patents]](../gifs/ps.gif) | . . And equalizing means |
305 | ![[Patents]](../gifs/ps.gif) | . . And tuning means |
306 | ![[Patents]](../gifs/ps.gif) | . . And bandpass, broadband (e.g., wideband) or sidepass means |
307 | ![[Patents]](../gifs/ps.gif) | . Integrated circuits |
308 | ![[Patents]](../gifs/ps.gif) | . Including atomic particle or radiant energy impinging on a semiconductor |
309 | ![[Patents]](../gifs/ps.gif) | . Involving structure of three diverse function electrode type |
310 | ![[Patents]](../gifs/ps.gif) | . Including plural stages cascaded |
311 | ![[Patents]](../gifs/ps.gif) | . . Having different configurations |
41 | ![[Patents]](../gifs/ps.gif) | WITH GAS OR VAPOR TUBE AMPLIFYING DEVICE |
42 | ![[Patents]](../gifs/ps.gif) | WITH SECONDARY ELECTRON EMISSION TUBE AMPLIFYING DEVICE |
43 | ![[Patents]](../gifs/ps.gif) | WITH TRAVELING WAVE-TYPE TUBE |
44 | ![[Patents]](../gifs/ps.gif) | WITH ELECTRON BEAM TUBE AMPLIFYING DEVICE |
45 | ![[Patents]](../gifs/ps.gif) | . Having electrode coupled to cavity resonator |
46 | ![[Patents]](../gifs/ps.gif) | . Having deflecting means |
47 | ![[Patents]](../gifs/ps.gif) | WITH MAGNETICALLY INFLUENCED DISCHARGE DEVICE (E.G., MAGNETRONS) |
48 | ![[Patents]](../gifs/ps.gif) | . Having signal applied to magnetic means |
49 | ![[Patents]](../gifs/ps.gif) | WITH VACUUM TUBE HAVING DISTRIBUTED PARAMETER IMPEDANCE CHARACTERISTICS |
50 | ![[Patents]](../gifs/ps.gif) | WITH DUMMY TUBE |
51 | ![[Patents]](../gifs/ps.gif) | COMBINED WITH AUTOMATIC AMPLIFIER DISABLING SWITCH MEANS |
52 | ![[Patents]](../gifs/ps.gif) | WITH PILOT FREQUENCY CONTROL MEANS |
53 | ![[Patents]](../gifs/ps.gif) | WITH DISTRIBUTED PARAMETER-TYPE COUPLING MEANS |
54 | ![[Patents]](../gifs/ps.gif) | . Distributed amplifier |
55 | ![[Patents]](../gifs/ps.gif) | . Push-pull |
56 | ![[Patents]](../gifs/ps.gif) | . Waveguide, cavity, or concentric line resonator |
57 | ![[Patents]](../gifs/ps.gif) | . Artificial line |
58 | ![[Patents]](../gifs/ps.gif) | WITH ROTATING DYNAMOELECTRIC AMPLIFYING DEVICE |
59 | ![[Patents]](../gifs/ps.gif) | HAVING LIGHT-CONTROLLED OR ACTIVATED DEVICE (I.E., NOT LIGHT SIGNAL) |
60 | ![[Patents]](../gifs/ps.gif) | HAVING MAGNETOSTRICTIVE-TYPE AMPLIFYING DEVICE |
61R | ![[Patents]](../gifs/ps.gif) | WITH RESISTIVE-TYPE AMPLIFYING DEVICE |
62 | ![[Patents]](../gifs/ps.gif) | . Magnetoresistive type |
61A | ![[Patents]](../gifs/ps.gif) | . Negative resistance amplifiers |
63 | ![[Patents]](../gifs/ps.gif) | WITH MAGNETIC MEANS AMPLIFYING DEVICE |
64 | ![[Patents]](../gifs/ps.gif) | WITH SPACE CHARGE GRID TUBE |
65 | ![[Patents]](../gifs/ps.gif) | INVOLVING STRUCTURE OTHER THAN THAT OF TRANSFORMERS PER SE |
66 | ![[Patents]](../gifs/ps.gif) | . With printed circuits |
67 | ![[Patents]](../gifs/ps.gif) | . With capacitive structure |
68 | ![[Patents]](../gifs/ps.gif) | . With shielding means |
69 | ![[Patents]](../gifs/ps.gif) | SUM AND DIFFERENCE AMPLIFIERS |
70 | ![[Patents]](../gifs/ps.gif) | ANODE ENERGIZED THROUGH DISCHARGE PATH OF CONTROLLED VACUUM TUBE |
71 | ![[Patents]](../gifs/ps.gif) | . Plural discharge paths traversed by anode supply |
72 | ![[Patents]](../gifs/ps.gif) | . . Amplifier devices in arms of a bridge |
73 | ![[Patents]](../gifs/ps.gif) | . Plural outputs |
74 | ![[Patents]](../gifs/ps.gif) | . Separate signal inputs to series devices |
75 | ![[Patents]](../gifs/ps.gif) | SIGNAL FEEDBACK |
76 | ![[Patents]](../gifs/ps.gif) | . Compensating for inter-electrode impedance (e.g., neutralization) |
77 | ![[Patents]](../gifs/ps.gif) | . . At least one push-pull stage |
78 | ![[Patents]](../gifs/ps.gif) | . . To or from electrode common to input and output |
79 | ![[Patents]](../gifs/ps.gif) | . . By transformer feedback |
80 | ![[Patents]](../gifs/ps.gif) | . . By coil in parallel to and resonating with inter-electrode capacity |
81 | ![[Patents]](../gifs/ps.gif) | . At least one push-pull signal stage |
82 | ![[Patents]](../gifs/ps.gif) | . . Positive and negative feedback |
83 | ![[Patents]](../gifs/ps.gif) | . . Including D.C. path for signal feedback |
84 | ![[Patents]](../gifs/ps.gif) | . Plural amplifier channels |
85 | ![[Patents]](../gifs/ps.gif) | . Amplifier in signal feedback path |
86 | ![[Patents]](../gifs/ps.gif) | . Variable impedance in feedback path varied by separate control path |
87 | ![[Patents]](../gifs/ps.gif) | . Cathode impedance feedback |
88 | ![[Patents]](../gifs/ps.gif) | . . Cascade amplifier stages with cathode-cathode feedback |
89 | ![[Patents]](../gifs/ps.gif) | . . . Between adjacent stages |
90 | ![[Patents]](../gifs/ps.gif) | . . Combined with diverse-type feedback coupling |
91 | ![[Patents]](../gifs/ps.gif) | . . . Diverse feedback to or from cathode |
92 | ![[Patents]](../gifs/ps.gif) | . . . . Feedback to cathode impedance of a prior stage |
93 | ![[Patents]](../gifs/ps.gif) | . . . Including positive feedback |
94 | ![[Patents]](../gifs/ps.gif) | . . Frequency responsive means in cathode impedance feedback path |
95 | ![[Patents]](../gifs/ps.gif) | . . Nonlinear impedance means in cathode impedance feedback path |
96 | ![[Patents]](../gifs/ps.gif) | . Combined with control of bias voltage of signal amplifier |
97 | ![[Patents]](../gifs/ps.gif) | . Including D.C. path for signal feedback |
98 | ![[Patents]](../gifs/ps.gif) | . In cascade amplifiers |
99 | ![[Patents]](../gifs/ps.gif) | . . Multiple feedback |
100 | ![[Patents]](../gifs/ps.gif) | . . . A feedback to input of a prior stage |
101 | ![[Patents]](../gifs/ps.gif) | . Positive and negative feedback in same path at different frequencies |
102 | ![[Patents]](../gifs/ps.gif) | . Current and voltage feedback |
103 | ![[Patents]](../gifs/ps.gif) | . Multiple feedback paths |
104 | ![[Patents]](../gifs/ps.gif) | . . Positive and negative feedback |
105 | ![[Patents]](../gifs/ps.gif) | . From impedance in series with output load (e.g., current feedback) |
106 | ![[Patents]](../gifs/ps.gif) | . In series with input source |
107 | ![[Patents]](../gifs/ps.gif) | . Phase shift means in loop path |
108 | ![[Patents]](../gifs/ps.gif) | . Potentiometer common to signal and feedback path |
109 | ![[Patents]](../gifs/ps.gif) | . Frequency responsive feedback means |
110 | ![[Patents]](../gifs/ps.gif) | . Nonlinear impedance element in loop path |
111 | ![[Patents]](../gifs/ps.gif) | . To or from an auxiliary grid or to the anode |
112 | ![[Patents]](../gifs/ps.gif) | . Positive feedback |
113 | ![[Patents]](../gifs/ps.gif) | POLYPHASE POWER SUPPLY (I.E., FOR AN ELECTRODE, CATHODE HEATER, OR FILAMENT) |
114 | ![[Patents]](../gifs/ps.gif) | UNRECTIFIED A.C. POWER SUPPLY FOR AN ELECTRODE (I.E., NOT THE HEATER) |
115 | ![[Patents]](../gifs/ps.gif) | . Applied to filamentary cathode |
116 | ![[Patents]](../gifs/ps.gif) | WITH BALANCED-TO-UNBALANCED COUPLING |
117 | ![[Patents]](../gifs/ps.gif) | WITH UNBALANCED-TO-BALANCED COUPLING |
118 | ![[Patents]](../gifs/ps.gif) | INCLUDING A PUSH-PULL STAGE |
119 | ![[Patents]](../gifs/ps.gif) | . Coupling to or from cathode in push-pull |
120 | ![[Patents]](../gifs/ps.gif) | . Interstage coupling between push-pull |
121 | ![[Patents]](../gifs/ps.gif) | . . D.C. coupling |
122 | ![[Patents]](../gifs/ps.gif) | . Input and/or output coupling for push-pull |
123 | ![[Patents]](../gifs/ps.gif) | . Power or bias supply circuits and control thereof |
124R | ![[Patents]](../gifs/ps.gif) | WITH PLURAL AMPLIFIER CHANNELS (E.G., PARALLEL AMPLIFIER CHANNELS) |
125 | ![[Patents]](../gifs/ps.gif) | . D.C. and A.C. amplifier channels |
126 | ![[Patents]](../gifs/ps.gif) | . Amplifying different frequencies in different channels |
124D | ![[Patents]](../gifs/ps.gif) | . Redundant amplifier circuits |
127 | ![[Patents]](../gifs/ps.gif) | WITH CONTROL OF POWER SUPPLY OR BIAS VOLTAGE |
128 | ![[Patents]](../gifs/ps.gif) | . Control means for anode of screen grid circuit |
129 | ![[Patents]](../gifs/ps.gif) | . With control of input electrode or gain control electrode bias |
130 | ![[Patents]](../gifs/ps.gif) | . . Bias controlled by separate external control source |
131 | ![[Patents]](../gifs/ps.gif) | . . Control of bias on separate gain control electrode |
132 | ![[Patents]](../gifs/ps.gif) | . . Frequency selective means to select control signal from amplifier channel |
133 | ![[Patents]](../gifs/ps.gif) | . . Different bias control means for different stages of cascade amplifier |
134 | ![[Patents]](../gifs/ps.gif) | . . Plural different bias control voltages provided by separate means |
135 | ![[Patents]](../gifs/ps.gif) | . . Amplitude limiting or bias voltage |
136 | ![[Patents]](../gifs/ps.gif) | . . Bias control signal from input of amplifier |
137 | ![[Patents]](../gifs/ps.gif) | . . Oscillator supplies or controls bias |
138 | ![[Patents]](../gifs/ps.gif) | . . Bias controlled by biased rectifier or discharge device |
139 | ![[Patents]](../gifs/ps.gif) | . . Electronic tube controls bias |
140 | ![[Patents]](../gifs/ps.gif) | . . Rectifier in bias control circuit |
141 | ![[Patents]](../gifs/ps.gif) | . . Time constant circuit in bias control circuit |
142 | ![[Patents]](../gifs/ps.gif) | . . Cathode resistor supplies bias (e.g., self-biasing circuits) |
143 | ![[Patents]](../gifs/ps.gif) | THERMALLY RESPONSIVE IMPEDANCE |
144 | ![[Patents]](../gifs/ps.gif) | VARIABLE IMPEDANCE FOR SIGNAL CHANNEL CONTROLLED BY SEPARATE CONTROL PATH |
145 | ![[Patents]](../gifs/ps.gif) | . Electron tube or diode as impedance |
146 | ![[Patents]](../gifs/ps.gif) | WHEATSTONE BRIDGE WITH AMPLIFIER IN AT LEAST ONE ARM |
147 | ![[Patents]](../gifs/ps.gif) | PLURAL SIGNAL INPUTS |
148 | ![[Patents]](../gifs/ps.gif) | PLURAL SIGNAL OUTPUTS |
149 | ![[Patents]](../gifs/ps.gif) | HUM OR NOISE OR DISTORTION BUCKING INTRODUCED INTO SIGNAL CHANNEL |
150 | ![[Patents]](../gifs/ps.gif) | CASCADED SIMILAR AMPLIFYING DEVICE OF DIFFERENT CHARACTERISTICS |
151 | ![[Patents]](../gifs/ps.gif) | WITH AMPLIFIER BYPASS MEANS (E.G., FORWARD FEED) |
152 | ![[Patents]](../gifs/ps.gif) | CASCADED DIFFERENTLY COUPLED BETWEEN STAGES |
153 | ![[Patents]](../gifs/ps.gif) | . Including a cathode follower stage |
154 | ![[Patents]](../gifs/ps.gif) | . Transformer or resonant circuit in interstage coupling (e.g., stagger tuning) |
155 | ![[Patents]](../gifs/ps.gif) | UNICONTROL OF COUPLING OR THE CIRCUITS ASSOCIATED THEREWITH |
156 | ![[Patents]](../gifs/ps.gif) | BOOTSTRAP COUPLING |
157 | ![[Patents]](../gifs/ps.gif) | INTERSTAGE COUPLING |
158 | ![[Patents]](../gifs/ps.gif) | . Coupling to cathode |
159 | ![[Patents]](../gifs/ps.gif) | . . D.C. coupling |
160 | ![[Patents]](../gifs/ps.gif) | . Coupling to plate or auxiliary grid |
161 | ![[Patents]](../gifs/ps.gif) | . . D.C. coupling |
162 | ![[Patents]](../gifs/ps.gif) | . Output coupling from grid |
163 | ![[Patents]](../gifs/ps.gif) | . . D.C. coupling |
164 | ![[Patents]](../gifs/ps.gif) | . With electronic tube or diode in coupling circuit |
165 | ![[Patents]](../gifs/ps.gif) | . Transformer coupling |
166 | ![[Patents]](../gifs/ps.gif) | . . With additional reactive coupling |
167 | ![[Patents]](../gifs/ps.gif) | . . With additional impedance connected to "P" or "S" circuits |
168 | ![[Patents]](../gifs/ps.gif) | . . From cathode |
169 | ![[Patents]](../gifs/ps.gif) | . . With means for adjusting inductive coupling |
170 | ![[Patents]](../gifs/ps.gif) | . . With shielding |
171 | ![[Patents]](../gifs/ps.gif) | . . With transformer structure |
172 | ![[Patents]](../gifs/ps.gif) | . Coupling from cathode |
173 | ![[Patents]](../gifs/ps.gif) | . . D.C. coupling |
174 | ![[Patents]](../gifs/ps.gif) | . With electromechanical transducer (e.g., piezoelectric crystal) |
175 | ![[Patents]](../gifs/ps.gif) | . With lattice or Wheatstone bridge network in coupling circuits |
176 | ![[Patents]](../gifs/ps.gif) | . With T, H, or Pi network in coupling circuit |
177 | ![[Patents]](../gifs/ps.gif) | . With coupling or blocking capacitor |
178 | ![[Patents]](../gifs/ps.gif) | . . With R or L in series between stages |
179 | ![[Patents]](../gifs/ps.gif) | . . L in anode or grid circuit |
180 | ![[Patents]](../gifs/ps.gif) | . . With R in anode and grid circuit (RC coupling) |
181 | ![[Patents]](../gifs/ps.gif) | . D.C. coupled |
182 | ![[Patents]](../gifs/ps.gif) | . . With series reactive element between stages |
183 | ![[Patents]](../gifs/ps.gif) | . . With nonlinear device |
184 | ![[Patents]](../gifs/ps.gif) | . . With series resistance between stages |
185 | ![[Patents]](../gifs/ps.gif) | INPUT NETWORKS |
186 | ![[Patents]](../gifs/ps.gif) | . To cathode |
187 | ![[Patents]](../gifs/ps.gif) | . . D.C. coupled |
188 | ![[Patents]](../gifs/ps.gif) | . Transformer coupled |
189 | ![[Patents]](../gifs/ps.gif) | . . With additional impedance connected to "P" or "S" circuits |
190 | ![[Patents]](../gifs/ps.gif) | . . With transformer structure |
191 | ![[Patents]](../gifs/ps.gif) | . D.C. coupled |
192 | ![[Patents]](../gifs/ps.gif) | OUTPUT NETWORKS |
193 | ![[Patents]](../gifs/ps.gif) | . From cathode |
194 | ![[Patents]](../gifs/ps.gif) | . . D.C. coupled |
195 | ![[Patents]](../gifs/ps.gif) | . Transformer coupled |
196 | ![[Patents]](../gifs/ps.gif) | . . With additional impedance connected to "P" or "S" circuit |
197 | ![[Patents]](../gifs/ps.gif) | . . With transformer structure |
198 | ![[Patents]](../gifs/ps.gif) | . D.C. coupled |
199 | ![[Patents]](../gifs/ps.gif) | WITH POWER OR BIAS VOLTAGE SUPPLY |
200 | ![[Patents]](../gifs/ps.gif) | . For plural stage amplifier |
201 | ![[Patents]](../gifs/ps.gif) | . . Filamentary cathodes heated by anode current or anode supply source |
202 | ![[Patents]](../gifs/ps.gif) | . For anode |
203 | ![[Patents]](../gifs/ps.gif) | . . And input electrode |
204 | ![[Patents]](../gifs/ps.gif) | . For input electrode |
205 | ![[Patents]](../gifs/ps.gif) | . . And filamentary cathode |
206 | ![[Patents]](../gifs/ps.gif) | . For filamentary cathode |
207R | ![[Patents]](../gifs/ps.gif) | MISCELLANEOUS |
207A | ![[Patents]](../gifs/ps.gif) | . Class D |
207P | ![[Patents]](../gifs/ps.gif) | . Amplifier protection means |