'66 Reverberocket acting up, tubes not lighting

[Guildedagain]

Seems like it's taking a few tries to get this amp going lately, sometimes turning it on the pilot light doesn't come on, then after another try it does, so I was blaming the switch, which does feel and sound fairly tired, but yesterday the light came on, no output, so I looked in the back, all tubes dark.

So the pilot light comes on, but not the amp?

Ideas?

This could be my big chance to go further with amp repair than before.

 

[fronobulax]

This one's for you, @Default.

 

[teleharmonium]

I would try swapping out the rectifier tube first if you have a spare.

 

[GAD]

I would try swapping out the rectifier tube first if you have a spare.

Agreed. If you're not getting DC then you're not getting tube heaters.

 

[GGJaguar]

If it's really a '66, it's got a solid state rectifier not a tube. The PT has a separate 6V winding for the filaments and pilot light. Since they are daisy-chained look for a bad or broken solder joint on the filament pins.

 

[Default]

This.

 

[Guildedagain]

Pot dates are '66 in this old pic. Looks like I've got some amp repair to do. This should be fun. Seems more enticing somehow than taking it all the way to the city, finding someone to do the job, and cutting a check.

 

[GGJaguar]

This should be fun.

Remember to unplug and then discharge the filter caps so you don't get zapped.

 

[Rocky]

If it's really a '66, it's got a solid state rectifier not a tube. The PT has a separate 6V winding for the filaments and pilot light. Since they are daisy-chained look for a bad or broken solder joint on the filament pins.

Could also be on the pilot light where the green wires connect to the tube sockets. Oh, is the pilot light dim, or bright?

 

[Guildedagain]

Pilot light is always the same as always, neither excessively dim or bright, weaker than a Fender pilot light, small orange jewel.

 

[Rocky]

Pilot light is always the same as always, neither excessively dim or bright, weaker than a Fender pilot light, small orange jewel.

Just asking - it it was dim, there might have been a short somewhere, enough not to make the tubes light up, but that doesn't appear to be the case. Rather, there's an open somewhere.

 

[GAD]

If it's really a '66, it's got a solid state rectifier not a tube. The PT has a separate 6V winding for the filaments and pilot light. Since they are daisy-chained look for a bad or broken solder joint on the filament pins.

If it's really a '66, it's got a solid state rectifier not a tube. The PT has a separate 6V winding for the filaments and pilot light. Since they are daisy-chained look for a bad or broken solder joint on the filament pins.

You didn’t expect me to actually look at a schematic did you? LOL

 

[AcornHouse]

Is that the Reverberocket R-12R-b? I have one.
If you PM me your email, I’ll send you a .pdf of the service docs for it. Has schematic, component list, voltages, etc.