| Author |
Message |
    
Dxmodulator
New member
Username: Dxmodulator
Post Number: 2
Registered: 11-2004
| | Posted on Thursday, November 11, 2004 - 8:30 pm: | 
|
Can I use a Palomar 90a tube amp to drive a Palomar 350z tube amp? If so how would I set it up and tune it for operation? |
Dindin
Intermediate Member
Username: Dindin
Post Number: 440
Registered: 2-2004
| | Posted on Friday, November 12, 2004 - 8:54 pm: |
|
DXModulator,the palomar 350z can be used with high drive between 11 and 100 watts if the rear panel switch is set appropriatly(hi posistion) |
Jp1116
Member
Username: Jp1116
Post Number: 77
Registered: 5-2002
| | Posted on Sunday, November 14, 2004 - 7:25 pm: |
|
Are you having problems with your driver tubes in the 350z? It would be much simpler to use the built in driver. If the set of two tubes on the right don't light up, check the switch on the back and make sure you have it set to the low drive position. Just click through all positions to see if they ever light up.
If you must drive it with the 90a, you probably can only use low to keep from exceeding 100 watts. As mentioned above be sure you now have the switch in the high drive position. This really abuses the keying circuit, however I have heard of some people having them last when driven hard.
I would tune up each amp one at a time for peak power as a starting position. Then with them both on at the same time,you will have to retune the 90a for peak output into the 350z and retune the 350z to peak the output again. You may have to do this a couple of times. I wouldn't key up for more than 8- 10 seconds at a time until you get it fairly tuned up to avoid overheating the tubes. |
|
