Resistor substitution

General discussion area for tube amps.

Moderators: pompeiisneaks, Colossal

Post Reply
'64DlxRvb
Posts: 30
Joined: Fri Sep 26, 2014 12:53 am

Resistor substitution

Post by '64DlxRvb »

Hey all.

Long time reader, first time poster. I'm building a carmen ghia clone from scratch, and have been gathering parts. Most I already have, buying the others. Anyway, for the feedback resistor, it calls for a 3.3 meg or 2.2 meg. I have some 3.3M Carbon resistors, but they're 1/2 W. Will that work? I have a couple of 2.2M 1 watters, but they're metal.

Thanks guys
Randy
User avatar
Leo_Gnardo
Posts: 2585
Joined: Thu Sep 27, 2012 1:33 pm
Location: Dogpatch-on-Hudson

Re: Resistor substitution

Post by Leo_Gnardo »

Should work fine. It's not as if that resistor's going to heat up.
down technical blind alleys . . .
'64DlxRvb
Posts: 30
Joined: Fri Sep 26, 2014 12:53 am

Re: Resistor substitution

Post by '64DlxRvb »

Leo_Gnardo wrote: It's not as if that resistor's going to heat up.
That's what I was thinking. I think a 1/2 watt carbon will be better than a 1watt metal for that location. Just wanted to check.

Thanks
matt h
Posts: 1224
Joined: Fri May 12, 2006 2:26 am
Location: New England

Re: Resistor substitution

Post by matt h »

(deleted)
Last edited by matt h on Fri Mar 27, 2015 5:05 am, edited 1 time in total.
'64DlxRvb
Posts: 30
Joined: Fri Sep 26, 2014 12:53 am

Re: Resistor substitution

Post by '64DlxRvb »

Film. Sorry.
matt h
Posts: 1224
Joined: Fri May 12, 2006 2:26 am
Location: New England

Re: Resistor substitution

Post by matt h »

(deleted)
Last edited by matt h on Fri Mar 27, 2015 5:05 am, edited 1 time in total.
'64DlxRvb
Posts: 30
Joined: Fri Sep 26, 2014 12:53 am

Re: Resistor substitution

Post by '64DlxRvb »

matt h wrote:
Keep up posted on the build!
Will do!
Stevem
Posts: 5144
Joined: Fri Jan 24, 2014 3:01 pm
Location: 1/3rd the way out one of the arms of the Milkyway.

Re: Resistor substitution

Post by Stevem »

keep in mind though that good old CC type resistors hold up to short term over loads better than metal films do, but they can catch fire when fully going south on ya!
When I die, I want to go like my Grandfather did, peacefully in his sleep.
Not screaming like the passengers in his car!

Cutting out a man's tongue does not mean he’s a liar, but it does show that you fear the truth he might speak about you!
Post Reply