16 Mar
2013
16 Mar
'13
2:52 p.m.
On 03/15/2013 01:09 PM, Tony Duell wrote:
>>
>
> Anyone else remeember the 0XZ4 rectifier? Common is such car radios.
I meant 0Z4, of course
And noisy (in the RF sense) as the dickens. Ran very hot, too. It had
a half-wave cousin, the OY3 (IIRC).
I've never come across that one. The 0Z4 was not common in the UK, very
few car radios used it, too.
B-supplies for auto radios seemed to come in a couple of flavors--gas
cold-cathode rectifier, traditional hot-cathode rectifier, and
synchronous vibrator rectifier--as well as an occasional plug-in
semiconductor replacement for the miserable OZ4. I don't recall seeing
a selenium rectifier in such rigs, however.
One of my vavled car radios uses a non-synchronous (primary side only)
vibrator and a biphase metal rectifier (presumably selenium) for the HT
supply. I can't rememebr what my other vavled car radio uses.
-tony