part values

[Valvehead]

I put a scem request in for this amp , but if anyone has one for it , can you tell me the values of the following ?

Bugera 6260 head.


C1 , looks like it says .1K ( .1uf?) 250v

R1 thru R6 , which are big green ceramic discs , dont know why they are labeled R .... , they are stamped SCK 20100 , all 6 have CL60 stamped on the board under them as well .


these are all on the AC plug board and it burned up real good !

[guitician]

The green ones could be Varistors. They are used to limit line surges.
Varistor - Wikipedia, the free encyclopedia

[Valvehead]

ok, thanks...wish i knew the values........

[Enzo]

Those are thermistors, CL60 is the type. Enter CL60 in Mouser's search box, then select varistors from the choices. $1.39 and in stock. Stock # 527-CL60.

Behringer for all their bad habits, likes to put not only the part number C1, R26, V3 on the board, but they also usually also put the part value on there as well. SO if you lift C1 off the board, it might just say .1 under it. Your CL60s are not covered on there either. I just remembered CL60 from somewhere else.

Behringer has no monopoly on inrush limiting thermistors burning up.

They also have a bad habit. None of their schematic seem to include the mains wiring. SO if your C1 is in the mains wiring, I'd have to make a guess. .1 sounds reasonable across the 120v mains circuits.

[Valvehead]

ok.

why do they use these ?

Couldnt you bypass them? I never see these on older Marshalls / Fenders for example

[Enzo]

You DO see them in Fenders. I keep thermistors in stock for Fenders.

They are used as inrush current limiters. Takes a bit of the jolt out of the turn-on process. I'd advise against bypassing them.