001.gif
1 IC TONE CONTROL PRE AMPLIFIER.JPG
1 KHZ 4TH ORDER BUTTERWORTH FILTER.JPG
1 TUBE REGENERATIVE SW RECEIVER.JPG
1.5 V FM TRANSMITTER.JPG
10-30W STEREO POWER AMPLIFIER.JPG
118 TO 136 MHZ AIRCRAFT RECEIVER.JPG
11820TO2013620MHZ20AIRCRAFT20RECEIVER.JPG
120KHZ204TH20ORDER20BUTTERWORTH20FILTER.JPG
12V 300W 4CH CAR AMPLIFIER.JPG
1300mc1.gif
1300mc2.gif
15 W MONO CAR AMPLIFIER.JPG
15wmod.gif
1kwfm.gif
1v1rx1.gif
2 TRANSISTOR PRE AMPLIFIER.JPG
2-4W MONO AMPLIFIER.JPG
20 KHZ BUTTERWORTH ACTIVE FILTER.JPG
20-70W MONO POWER AMPLIFIER.JPG
20W TRANSISTOR POWER AMPLIFIER.JPG
25-50 W STEREO POWER AMPLIFIER.JPG
25wtx.gif
2W POWER AMPLIFIER.JPG
3 V FM TRANSMITTER.JPG
30W TRANSISTOR POWER AMPLIFIER.JPG
455 KHZ OSCILLATOR.JPG
4W STEREO CAR AMPLIFIER.JPG
5 W STEREO IC AMPLIFIER.JPG
5-25W STEREO POWER AMPLIFIER.JPG
500 MW AMPLIFIER.JPG
5W 6-9V MONO AMPLIFIER.JPG
5W 9V MONO AMPLIFIER.JPG
5W MONO CAR AMPLIFIER.JPG
5W STEREO AMPLIFIER.JPG
5W STEREO POWER AMPLIFIER.JPG
600.gif
60cm.gif
60watt.gif
6W MONO CAR AMPLIFIER.JPG
AC-DC TUBE AM AND SHORTWAVE RECEIVER(PART 1).JPG
AC-DC TUBE AM AND SHORTWAVE RECEIVER(PART 2).JPG
ACTIVE ANTENNA FOR UHF SCANNERS.JPG
ACTIVE BANDPASS FILTER CIRCUIT.JPG
ACTIVE CW AUDIO FILTER.JPG
ACTIVE HIGH PASS FILTER.JPG
ACTIVE LOW-PASS FILTER.JPG
ADJUSTABLE Q NOTCH FILTER.JPG
AM BROADCAST TRAP FOR SIMPLE SW RECEIVER.JPG
AM OSCILLATOR FOR WIRELESS MICROPHONE.JPG
AM RADIO.JPG
AM-FM RECEIVER CIRCUIT.JPG
AM2520BROADCAST2520TRAP2520FOR2520SIMPLE2520SW2520RECE.JPG
AMPLIFIER FRONT PANEL DESIGNS.JPG
AMPLIFIER SYSTEM (PART 1).JPG
AMPLIFIER SYSTEM (PART 2).JPG
AMPLIFIER SYSTEM (PART 3).JPG
AMPLIFIER SYSTEM (PART 4).JPG
AMPLIFIER SYSTEM CONNECTION DIAGRAM.JPG
ANTENNA TUNER.JPG
Afluis.gif
Airband.gif
Ant1.gif
Ant2.gif
Ant3.gif
Ant4.gif
Antenna1.gif
Antennes5.gif
Audio1.gif
BALANCED LINE RECEIVER.JPG
BANDPASS FILTER.JPG
BASIC LOGARITHMIC AMPLIFIER USING OP AMP.JPG
BEAT FREQ OSCILLATOR AM-SW RADIOS.JPG
BUTLER OSCILLATOR CIRCUIT.JPG
BUTLER20OSCILLATOR20CIRCUIT.JPG
Bgy33.gif
Boost.gif
Bug2.gif
CLAPP OSCILLATOR FOR 100 KHZ.JPG
CLAPP20OSCILLATOR20FOR2010020KHZ.JPG
COLPITTS OSCILLATOR.JPG
COLPITTS20OSCILLATOR.JPG
COMBINATION FILTER.JPG
COMPLETE CASSETTE AMPLIFIER.JPG
COMPLETE MONO AMPLIFIER.JPG
CRYSTAL OSCILLATOR 1.JPG
CRYSTAL OSCILLATOR 2.JPG
CRYSTAL OSCILLATOR 3.JPG
CRYSTAL OSCILLATOR WITH ADJUSTABLE FREQUENCY.JPG
CRYSTAL OSCILLATOR WITH FM CAPABILITY.JPG
CRYSTAL TUNED AMPLIFIER.JPG
CRYSTAL20OSCILLATOR20WITH20ADJUSTABLE20FREQUENCY.JPG
CW IDENTIFIER WITH SINE WAVE AUDIO OUTPUT.JPG
Conv1.gif
Conv2.gif
Cwtx2.gif
DARLINGTON TRANSISTOR OSCILLATOR.JPG
DARLINGTON20TRANSISTOR20OSCILLATOR.JPG
DC-SWITCHED CRYSTAL OSCILLATOR.JPG
DC-SWITCHED20CRYSTAL20OSCILLATOR.JPG
DIFFERENCE AMPLIFIER WITH WIDE INPUT COMMON-MODE RANGE.JPG
DIGITAL COMB FILTER.JPG
DIRECT-CONVERSION 7 MHZ RECEIVER.JPG
DUAL-INVERTER LINE RECEIVER.JPG
ECONOMY SHORTWAVE RECEIVER.JPG
ECONOMY20SHORTWAVE20RECEIVER.JPG
FET QUARTZ CRYSTAL OSCILLATOR.JPG
FET VXO CIRCUIT.JPG
FET20VXO20CIRCUIT.JPG
FM AUTO RADIO DIVERSITY ANTENNA (CONT..).JPG
FM AUTO RADIO DIVERSITY ANTENNA.JPG
FM BUG.JPG
FM HF OSCILLATOR WITH NO VARACTOR.JPG
FM SCANNER NOISE SQUELCH.JPG
FM STEREO TRANSMITTER.JPG
FM TRANSMITTER.JPG
FREQ MODULATED OSCILLATOR.JPG
FREQUENCY DOUBLER AND CRYSTAL OSCILLATOR.JPG
Final2.gif
Fm1.gif
Fmrx1.gif
Fmtx2.gif
G2mod.gif
GROUNDED BASE RUNED COLLECTOR OSCILLATOR.JPG
GROUNDED20BASE20RUNED20COLLECTOR20OSCILLATOR.JPG
Gitar1.gif
HARTLEY OSCILLATOR.JPG
HARTLEY20OSCILLATOR.JPG
HF VFO CIRCUIT.JPG
HF20VFO20CIRCUIT.JPG
HIGH INPUT IMPEDANCE AC AMPLIFIER.JPG
HIGH PASS ACTIVE FILTER.JPG
HIGH Q NOTCH FILTER.JPG
HIGH SIDE CURRENT-SENSING AMPLIFIER.JPG
HIGH-PASS FILTER.JPG
HIGHPASS AMPLIFIER.JPG
Hb9cv.gif
ISD 1000A RECORD-PLAYBACK CIRCUIT.JPG
JFET VARIABLE FREQ OSCILLATOR.JPG
LM-MW converter for ham-only receivers.gif
LOW COST 6W 40M CW TRANSMITTER.JPG
LOW POWER VHF BEACON TRANSMITTER.JPG
LOW-FREQUENCY20CONVERTER.JPG
LOW-VOLTAGE MICROPHONE PREAMP.JPG
LOWPASS AMPLIFIER.JPG
Lineair.gif
Liniar.gif
MATCHBOX ANTENNA TUNER.JPG
MICRO AMPLIFIER.JPG
MICRO TV TRANSMITTER.JPG
MINI TRANSMITTER.JPG
MINI20TRANSMITTER.JPG
MINITURE BROADBAND ANTENNA (3 TO 30 MHZ).JPG
MODIFIED HARTLEY OSCILLATOR.JPG
MODIFIED20HARTLEY20OSCILLATOR.JPG
MONO 1 TRANSISTOR PRE AMPLIFIER.JPG
MONO 15V PRE AMPLIFIER.JPG
MONO PRE AMPLIFIER.JPG
MORSE MESSENGER (CONT).JPG
MORSE MESSENGER.JPG
MOSFET PUSH-PILL AMPLIFIER.JPG
Metaldet.gif
Mg1.gif
Mgtx3.gif
Mgtx4.gif
Mgtx5.gif
Minispy1.gif
Minitx.gif
Modulator.gif
Monitor.gif
NINE BAND SW RECEIVER (PART 1).JPG
NINE BAND SW RECEIVER (PART 2).JPG
NINE20BAND20SW20RECEIVER20PART201.JPG
NINE20BAND20SW20RECEIVER20PART202.JPG
OLD FASHIONED CRYSTAL RADIO.JPG
ONE OP-AMP BANDPASS FILTER.JPG
ONE-TUBE AM RECEIVER.JPG
OPERATIONAL TRANSCONDUCTANCE AMPLIFIER WITH BOOSTER.JPG
OSCILLATOR CIRCUIT.JPG
Osci1.gif
PIN DIODE FILTER SELECTION CIRCUIT.JPG
PROGRAMMABLE ANALOG FILTER.JPG
PROGRAMMABLE GAIN AMPLIFIER.JPG
PROGRAMMABLE INPUT AMPLIFIER.JPG
Porto1.gif
Poweramp.gif
Pre1.gif
Preampl.gif
Preh3.gif
Preselek.gif
Puampl.gif
Qqe0640.gif
Qrp1.gif
RC NOTCH FILTER.JPG
RC20NOTCH20FILTER.JPG
REGENERATIVE AM RECEIVER.JPG
REGENERATIVE RECEIVER FOR 6 TO 17 MHZ.JPG
REGENERATIVE2520RECEIVER2520FOR252062520TO2520172520MH.JPG
REINARTZ OSCILLATOR.JPG
REINARTZ20OSCILLATOR.JPG
RELAY INTERFACE TO RC RECEIVERS.JPG
REMOTE AMPLIFIER.JPG
REMOTE OSCILLATOR HIGH FREQ VFO.JPG
REMOTE TUNED ACTIVE HF ANTENNA.JPG
REMOTELY POWERED SENSOR AMPLIFIER.JPG
RX MINI 5 - 1.jpg
RX MINI 5 - 2.jpg
RX MINI 5 - 3.jpg
RX MINI 5 - 4.jpg
RX MINI 5 - 5.jpg
RX MINI 5 - 6.jpg
Radio1.gif
Rtx1.gif
Rx1.gif
Rx2.gif
SALLEN KEY LOW PASS FILTER.JPG
SALLEN-KEY HIGH-PASS FILTER.JPG
SAW FILTER IMPEDANCE MATCHING PREAMPLIFIER.JPG
SCANNER SILENCER.JPG
SECOND-ORDER VOLTAGE-CONTROLLED FILTER.JPG
SHORTWAVE CONVERTERS FOR SCANNERS.JPG
SHORTWAVE INTERFERENCE TRAP.JPG
SHORTWAVE RECEIVER IF FILTER.JPG
SHORTWAVE RECEIVER.JPG
SHORTWAVE20INTERFERENCE20TRAP.JPG
SHORTWAVE20RECEIVER.JPG
SIMPLE CODE PRACTICE OSCILLATOR.JPG
SIMPLE CRYSTAL RADIO.JPG
SIMPLE HF RECEIVE CONVRTER.JPG
SIMPLE20HF20RECEIVE20CONVRTER.JPG
SINGLE 3.3V SUPPLY 4 POLE STATE VARIABLE FILTER.JPG
STATE VARIABLE FILTER.JPG
STEREO PRE AMPLIFIER.JPG
SUPERHET FRONT END.JPG
Scanner1.gif
Shvoltag.gif
Smaltx1.gif
TELEPHONE-AUDIO INTERFACE.JPG
TOROIDAL CORE TRF SW RECEIVER.JPG
TOROIDAL20CORE20TRF20SW20RECEIVER.JPG
TUNABLE FM ANTENNA BOOSTER.JPG
TUNABLE UHF OSCILLATOR.JPG
TUNABLE20UHF20OSCILLATOR.JPG
TUNED AMPLIFIER.JPG
TUNED COLLECTOR OSCILLATOR.JPG
TWO BAND RADIO.JPG
TWO OP-AMP BANDPASS FILTER.JPG
TWO STAGE TRF REGENERATIVE RECEIVER.JPG
TWO20STAGE20TRF20REGENERATIVE20RECEIVER.JPG
TX 75W - 1.jpg
TX 75W - 2.jpg
TX 75W - 3.jpg
TX 75W - 4.jpg
TX 75W - 5.jpg
TX 75W - 6.jpg
TX 75W - 7.jpg
TX 75W - 8.jpg
Toonreg.gif
Trv1.gif
Tvampli1.gif
Tvstat.gif
Tvtx1.gif
Tvtx2.gif
Tvtx9.gif
Tx.gif
UJT 100-KHZ CALIBRATION OSCILLATOR.JPG
UNIVERSAL VFO.JPG
UNIVERSAL20VFO.JPG
Uhfampli.gif
VARIOMETER-TUNED RADIO.JPG
VCR HEAD AMPLIFIER TESTER.JPG
VIDEO LINE RECEIVER.JPG
VLF LC OSCILLATOR.JPG
VLF20LC20OSCILLATOR.JPG
VOLTAGE COLTROLLED LOW PASS FILTER.JPG
VSB FILTER FOR LM2889.JPG
Vosant.gif
WIRELESS GUITER TRANSMITTER.JPG
WIRELESS MICROPHONE.JPG
WWV CONVERTER.JPG
WWV RECEIVER (CONT.).JPG
WWV RECEIVER CIRCUIT.JPG
WWV RECEIVER.JPG
WWV20RECEIVER.JPG
WWV20RECEIVER20CIRCUIT.JPG
WWV20RECEIVER20CONT.JPG
Zender3.gif
ac-dc rx.jpg
autoant.jpg
broadband ant.jpg
heising1.gif
mk484.gif
r1.gif
scan.gif
schema.htm
schema.php
schema.php.htm
tipy.htm
tvtx3.gif
tx15.gif