| Author | Message | ||
| uposb4 |
steve, my tremelo has gone out on my hd-130 212 and i found in the archives where you mentioned that the ldr light can be the problem if its out. i looked inside and found the only light, its half encased in white and one lead going the the ground switch and the other going to the main fuse. I turned on the amp and this light did not glow. is this the light you were refering to? it appears to have a small capacitor inside. do you have these or can you point me in the direction? by the way, the archives are a gold mine of information, thanks. | ||
| Steve Kennedy |
I mispoke on that post... I was thinking of another amplifier! The Music Man tremelo circuits are a transistor oscillator driving an FET as the output device. It is more likely you have a dirty pot or a bad transistor. Music Man DID use LDRs (2 of them to be exact) in the Phasor circuit contained in the RP series and the 75 & 150 series amps. Steve | ||
| Terry |
That is not a light,it is a mercury switch. Look for a bad LM307H Transistor. |
Tue, 03/25/2014 - 09:58
#1