| ampage Tube Amps / Music Electronics |
For current discussions, please visit Music Electronics Forum. |
ampage archive
Vintage threads from the first ten years
| previous: bronco Hey does anyone know if EL34's are ... -- 4/18/2000 4:29 AM |  |
|---|
Re: Can I interchange EL34's with...
 4/18/2000 2:00 PM |
|
Trace | Re: Can I interchange EL34's with... EL34's to 6550 conversion; 1.) Locate the 47K resistor above the bias pot and solder another 47K in parallel (across the existing resistor). 2.) Set the bias pot to max or minimum (everyone has their opinion on this). 3.) Move the Feedback tap to the 8ohm tap (it should be on the 4ohm tap right now) 4.) Install the EL34's and re-bias. 5.) Plug in and play! Hope it helps; Trace PS: If you are not sure how to bias an amp (if you are forget I said anything! ha, ha) please take it to a tech who is experienced because there are things in there that will stop your heart and we want you alive!!!!!! :^) |
|---|---|
| Replies: |
| bronco Thanks a bunch man! This is still t... -- 4/18/2000 7:21 PM andyfuchs Lets not forget heater current. I'd... -- 4/22/2000 10:07 PM Dave K Thanks Guys!! |