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Home page.
Valve veneration
Radios, scopes and other equipment using thermionic valves.
Radios
- Philips 836A radio (1934/1935)
- Philips 456A radio (1936)
- Philips 667A radio (1937)
- Another Philips 667A
- Third Philips 667A I fixed, not
mine.
- An Isis model 127A radio (1937)
- Mende 315W radio (1938)
- Philips 470U "Zonnetje" radio
- Waldorp 120 battery radio
- Philips 915X radio
- Wartime Civilian Receiver (1944)
- Philips 170A/15 radio
- Philips BX560A radio
- Philips BX373A "Compass" radio
- Erres KY485 radio.
- Philips BX480A radio.
- EAW AT Super 660 WK3 DDR radio
- Tesla Talisman 308U radio.
- Nordmende Fidelio 53 radio.
- His Master's Voice 1101 radio.
- His Master's Voice 1122 radio.
- Bush DAC10 AC/DC radio.
- Erres KY515 radio.
- Philips BX732A radio.
- Philips HX347A radio/gramophone.
- HX347A close-up photographs
- Erres KY552 portable valve portable
- RCA Victor 4-Y-511 radiogram
- Philips B1X67U kitchen radio
- Philips B7X63A luxurious Bi-Ampli radio with SEPP amplifiers.
- Philips B5X74A plano radio with SEPP amplifier (1957)
- Philips B4X82A-01 radio (traded)
- Erres KY585 radio (1959)
- Bush TR82C transistor portable (1959).
- Philips A5X83A AM/FM tuner (1960)
- Eddystone 840A communications receiver.
- Eddystone 870A radio
- Sharp UW-122 small table radio.
- Philips B5X14A Plano radio
- Philips B7X14A luxury Plano
- Philips B1X42A AM/FM radio
- Bush VHF81 AM/FM AC/DC radio.
- Philips B8X44A stereo Plano
- MBLE BBO840 FM tuner from a kit
- Blaupunkt Parade transistor portable (1964).
- RFT Stern Jalta 5360D DDR radio.
- Blaupunkt Stockholm FM stereo radio.
- UM58 homebrew regen receiver
Amplifiers
With thermionic valves:
- Bedrock 600 guitar combo repair.
- A Geloso G215AN amplifier, from around 1960.
Scopes and similar
Those using valves (other scopes under instruments)
- Philips GM5603 scope
- Philips GM5606 scope
- Philips GM5653 scope
- Philips GM5659 scope
- Philips GM5659-01 scope
- Tektronix 545B scope
- Hameg HM107 scope
- Heathkit IO-20 ignition analyser
Measuring instruments
Other measuring equipment using valves:
- Philips GM2882 RF generator from around 1945, not working.
- Slightly more recent Philips GM2882 RF generator, working (traded).
- Philips GM2885 Calibrating oscillator (1949)
- Philips GM2315 LF generator (1950).
- Philips GM6004/02 diode voltmeter
- Another Philips GM6004/02 diode voltmeter, about 1951.
- Philips GM7635/01 valve multimeter
- Philips GM2317 LF generator (1954) , fixed in 2026
- Taylor model 67A RF generator
- Philips GM2883 RF generator
- Philips GM2886 RF sweep generator
- Two Heathkit V-7A Valve Voltmeters (traded).
- IM-11D Valve Voltmeter and a wreck (traded).
- Paco V-70 Valve Voltmeter (traded).
- Philips GM6012 AC valve voltmeter
- Heathkit IG-102 RF generator (traded).
- Taylor model 67A RF and AF generator, from the early sixties(traded)
- Philips PM5100 LF generator (1963)
- A NordMende UW342 wobbler from the early sixties
- A Philips PM532O signal generator with AM and FM (1962-1966).
- A Philips PM5321 signal generator with AM and FM (1966-1970).
Tube testers
Neon nostalgia
Neon and nixies
- Guide on how to drive nixies with examples.
Calculators
- Casio 122 desktop calculator
- Monroe 640 Desktop Calculator
- 7-segm. neon display calculator
- Berkel 176SG scale with Panaplex displays
Measuring equipment
- Advance DVM1 digital voltmeter
- Philips PM2433 digital voltmeter
- Systron Donner 9000 Volt-Ohmmeter
- Monsanto 101B frequency counter
- Philips PM2420 digital multimeter
- Takeda Riken 3788B frequency counter
- Digavi digital nixie DC multimeter
- Racal 9520 frequency period meter Made in Britain, 1970
- Philips PM6630 frequency counter
- Philips PM6630B frequency counter
- Philips PM2421 digital multimeter
- Heathkit IM1202 digital multimeter
- Scneider DigiTest 500 digital voltmeter
- Gay-Milano tracking voltmeter
- Nordmende DiVo 3362 Digital voltmeter with Panaplex display
- Feedback FM610 frequency meter with Panaplex display
- Philips PM2423 digital multimeter
- Philips PM2424 4 digit autoranging digital multimeter
- Philips PM2443 autoranging digital voltmeter
- Homebuilt universal frequency counter by a German radio ham.
- SEV frequency counter, German homebuilt.
- EVM100 nixie panel meter.
- Philips PM2494/01 3.5-digit digital panel meter
- Newport Laboratories Model 200A-3 3.5-digit digital panel meter.
Clocks and timers
Intricate Instruments
- Multimeters page
- Philips PE4801 early stabilised power supply.
- Delta D015-1.5 laboratory power supply.
- Philips PM5126 sine/square-wave oscillator.
Oscilloscopes
- Tektronix 568 sampling scope.
- Tektronix 475 200MHz scope
- Heathkit IO4560 scope,
- Hameg HM207 scope,
- Elektorscope after the Elektuur design,
- Tektronix 2235 scope,
Projects Page
- μTracer valve characteristic tester (work in progress)
- Quad 405 amplifier clone
- Guitar amplifier combo
- RS-232 level converter. after Maxim application note.
- FM stereo test signal generator from SUP1 kit by ELV.
- ZM1040 Nixie clock after www.nixieclocks.de
- Simple RJ-45 cable tester
- UM58 homebrew regen
receiver
- Nixie Clock after Frank Bemelman's design
- Autoranging digital capacitance meter TTL-based, after a design from Practical Electronics.
- FC7008 frequency counter from ELV kit
- Adjustable power supply using μA723
- M13 High voltage supply
Awesome audio
Odds and ends
- Building a Bi-Quad antenna to extend Wi-Fi range of a device.
- DeLonghi Magnifica S repair.
- Converting a Compaq laptop power adapter to a LED lighting power supply.
- Krups Nespresso Repair.
- Yellow Bathtub Submarine repair attempt.
- Techniques to apply a new speaker cloth on an old radio.
- Guitar combo flashover explanation and repair.
