Sleeper
Well-known member
Anyone want to have a look at this and let me know if you spot any major blunders.
I'm converting an old webcor tube tape deck into a guitar amp. The original output section had some wierd things going on. 1 6v6 was labelled bias osc. output, and one was output, but it was still push pull as far as I could tell.
I ditched all the crazy switching and the bias oscilattor coil, and now it's more or less the same as a Gibson GA6, that was easy and required only 2 new resistors :grin:
The output transformer is pretty cool, with an 8 ohm and a 500 ohm output, so I'm looking to make a record line out but I'm not so sure if It's going to work. I don't want to blow the output transformer.
I've drawn it as it was in the webcor. Maybe I should move the bias resistor in between the two plates and parallel the two primaries :?:
There's a magic eye tube 6e5 circuit as well, I've left this as is, the hookup poionts are marked X and Y. Do you think this will need some compensation somewhere so as not to throw off the phase inverter balance too much, or does it look OK as is.
Thanks
Kelly
I'm converting an old webcor tube tape deck into a guitar amp. The original output section had some wierd things going on. 1 6v6 was labelled bias osc. output, and one was output, but it was still push pull as far as I could tell.
I ditched all the crazy switching and the bias oscilattor coil, and now it's more or less the same as a Gibson GA6, that was easy and required only 2 new resistors :grin:
The output transformer is pretty cool, with an 8 ohm and a 500 ohm output, so I'm looking to make a record line out but I'm not so sure if It's going to work. I don't want to blow the output transformer.
I've drawn it as it was in the webcor. Maybe I should move the bias resistor in between the two plates and parallel the two primaries :?:
There's a magic eye tube 6e5 circuit as well, I've left this as is, the hookup poionts are marked X and Y. Do you think this will need some compensation somewhere so as not to throw off the phase inverter balance too much, or does it look OK as is.
Thanks
Kelly