im repairing a guitar amp for a freind ,its a randall century 170 roman num 2 does anyone know where to download a schematic for amps. i found just a regular manual for it but no schematic,i could probley just wing it but i read where there were some updates on this model, so thats why im looking for one. thanks

You might have more luck in the Tube Audio section of this forum:

http://www.audiokarma.org/forums/index.php

Phil Nelson

I don't know if this is anywhere in the ballpark as far as what you need, but it's all I have. The Randall Century 170 and the RG170 use the same chassis, just different names.

The schematic link is for an RG100. They might have some similarities.

You might also contact Randall and see if they have a download of the schematic.

I don't know if this is anywhere in the ballpark as far as what you need, but it's all I have. The Randall Century 170 and the RG170 use the same chassis, just different names.

The schematic link is for an RG100. They might have some similarities.

You might also contact Randall and see if they have a download of the schematic.

thanks, i think that looks close ill check it out and let you know.

Doesn't Sams cover guitar amps??

Doesn't Sams cover guitar amps??

good question, i dont know i rarely need a schematic for a amp there usually straight forward and easy to fix.

Doesn't Sams cover guitar amps??

All the Sams coverage I've seen were the one page "servicers". Usually Gibsons or Fenders. Also some Sears and Wards models.
Not much other than those. :sigh:

You might have some luck at the Randall amp forum. Doesn't look like there's too many people there, but, all it takes is one person to know where to find what you want...

http://forums.randallamplifiers.com/index.php

All the Sams coverage I've seen were the one page "servicers". Usually Gibsons or Fenders. Also some Sears and Wards models.
Not much other than those. :sigh:

They have a few Masco amp schematics. Got one for my 1946 MAP-105, not that it pertains to the Randall. Just thought I'd throw that in.

They have a few Masco amp schematics. Got one for my 1946 MAP-105, not that it pertains to the Randall. Just thought I'd throw that in.

the first one you showed me is close ,but mine has more features added to it ,i found some other randall schematics they seem to use basic layout , sometimes you can get a idea how a company likes to do things and be able peace together enough info and be able fix it that way,i think ill do what phil suggested and see if any audiokarma guys might have any idea . thanks everyone

I'd email or call Randall. Most of these musical amp companies are all for keeping their past customers happy. Tell them you're a service tech trying to keep a customers great old classic in service. :yes:

They have a few Masco amp schematics. Got one for my 1946 MAP-105, not that it pertains to the Randall. Just thought I'd throw that in.

I didn't think about PA or HiFI/stereo equipment. They even covered record changers, tape recorders etc. Only limited coverage on musical instrument amps. :thumbsdn:

i got it all working fine now ,thanks for everyone's input and some info.

i got it all working fine now ,thanks for everyone's input and some info.

Are you going to keep us in suspense, or tell us what was wrong with it? :D

Are you going to keep us in suspense, or tell us what was wrong with it? :D

Amen, Brother!

oops im back now ,yea it was one of the filter caps, a open coil on the reverb on the inside were it attachs to the spring small wire fell off / cleaned all of the probley beer out of the pots resoldered a few qustionable traces that looked alittle loose, turned out pretty good ,the test will be tomorrow when i let him hook it back to the speakers ,i think they need rewired to butt havent seen them yet .

it turned out great ,when me and the owner put it to the test ,ill probley have to rewire the speaker cabinets too if the owner cant follow instructions ,but at least my part is finished.thanks again for the input everyone, i have more things to fix before i can work on my stuff