UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post - Vortexion reel to reel tape recorder WVA series 5

Luxman1050 · 28th Oct 2020, 1:01 pm

Well I've had to drop that 39k resistor down to 10k. So I'm now getting 200 on the signal/bias switch. Which is obviously what it should be. Not 50 max which is all I was getting. Initially thoughts where the 12BH7. But thats fine. Glad it is. Those replacement Brimar ones which I have cost a ****** fortune.
So all okay at minute. I'll run some tapes through later see how it sounds. Workman in at the moment so ****** chaos.
Mind you I'm baffled as having to drop 27k to get correct reading?

28th Oct 2020, 1:01 pm	#53
Luxman1050 Octode Join Date: Apr 2019 Location: Margate, Kent, UK. Posts: 1,728	Re: Vortexion reel to reel tape recorder WVA series 5 Well I've had to drop that 39k resistor down to 10k. So I'm now getting 200 on the signal/bias switch. Which is obviously what it should be. Not 50 max which is all I was getting. Initially thoughts where the 12BH7. But thats fine. Glad it is. Those replacement Brimar ones which I have cost a **** fortune. So all okay at minute. I'll run some tapes through later see how it sounds. Workman in at the moment so **** chaos. Mind you I'm baffled as having to drop 27k to get correct reading?