That thing is beautiful, i'd take it in a whim if it weren't for the shipping and 230 VAC incomparability.
Old stuff, let me see, I occasionally use my Tek 535A the 545A also gets some use. The rest of my teks are in dire need of repair.
Euhmm, old but solid state, a delta D015-1.5 also a Philips PE4817 35v 10A PSU.
HP6281A for powering heaters on projects.
Then there are the Avometers, which see occasional use measuring voltages which the digital meters can't handle.
Old stuff, let me see, I occasionally use my Tek 535A the 545A also gets some use. The rest of my teks are in dire need of repair.
Euhmm, old but solid state, a delta D015-1.5 also a Philips PE4817 35v 10A PSU.
HP6281A for powering heaters on projects.
Then there are the Avometers, which see occasional use measuring voltages which the digital meters can't handle.
I have a new, in box HP 400-D -- i guess it's like having a 1983 Chateau Petrus -- you never want to open it.
The only vintage test equipment I have is an old Hickok 539b tube tester. I paid through the nose for it because cosmetically it was in great shape, but I did have some issues with it that seems to be sorted out now that I got it serviced.
It has served me well over the past few years.
It has served me well over the past few years.
Some very good stuff ,i will post some pics over the weekend ,as work is keeping keeps me
to busy
to busy
REFUGEE1,I like your megger is it a evershed vignoles ,i have the cabinet to hold it in place
and it is driven by a electric motor.....very rare !
and it is driven by a electric motor.....very rare !
Both are real Megger branded. The company is now owned by AVO.
The wooden one with the AVO 8/9 next to it is made to be used with an external power supply and I have also shown an internal view of it.
I have made up a rechargeable battery from an old tow truck beacon and an old 1980s laptop battery.
It works very well and is quite accurate.
The wooden one with the AVO 8/9 next to it is made to be used with an external power supply and I have also shown an internal view of it.
I have made up a rechargeable battery from an old tow truck beacon and an old 1980s laptop battery.
It works very well and is quite accurate.
Is your philips PM5130 a beat frequency oscillator? If yes do you have a schematic for it? What is the THD+N floor?
Art
Art
I picked this unit up quite recently. (just for the looks I had to buy it!)
The unit works OK, but can’t say what the schematic is. I suppose it’s a Wienbridge.
The unit works OK, but can’t say what the schematic is. I suppose it’s a Wienbridge.
I am pretty sure that is a BFO.
I looked for the schematic on line but could not find any.
I always wanted to build a BFO, but never did.
Art
I looked for the schematic on line but could not find any.
I always wanted to build a BFO, but never did.
Art
I can`t imagine it would be a BFO since that would be an peculiarly complicated way to build an audio oscillator. Wien bridge was pretty usual in those days.
It is not possible to design a wien bridge generator that covers 3 decades without a range switch!
Art
Art
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We need to see more old school test gear ,i think they are just so warm as what
valve audio is ,i wish i had a room full of those old stuff ........i will sleep in the room to !!
valve audio is ,i wish i had a room full of those old stuff ........i will sleep in the room to !!
Nice vintage gear in this thread.
From my vintage test gear collection.
HP 400D and Heathkit HF-generator (both are awaiting restoration)
Megger
From my vintage test gear collection.
HP 400D and Heathkit HF-generator (both are awaiting restoration)
Megger
I just bought a Avo meter Mk 8 for a song ,still in its original case and probes nearly brand new
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