Low wattage Plexi

General discussion area for tube amps.

Moderators: pompeiisneaks, Colossal

User avatar
jazbo8
Posts: 311
Joined: Sat Jul 23, 2011 12:59 am

Re: Low wattage Plexi

Post by jazbo8 »

Littlewyan wrote:
In Jazbo's voltage divider equation why was 18R and 39R used? Was 39R supposed to be 47R or something?
I did not look at the schematic either :? I just used the figures from your post as an example, so please use smokebreak's numbers.
User avatar
Littlewyan
Posts: 1944
Joined: Thu Sep 12, 2013 6:50 pm
Location: UK

Re: Low wattage Plexi

Post by Littlewyan »

Ah I see now it all makes sense. So for the 8Ohm Tap the 18R Resistor would be in parallel with 16Ohms, which gives 9R which is then in parallel with the 8Ohm Tap right? So if we had a 4Ohm Tap it'd be 9R in Parallel with that tap as well?
User avatar
Cantplay
Posts: 982
Joined: Wed Jun 22, 2011 1:09 am
Location: Ground Zero NYC
Contact:

Re: Low wattage Plexi

Post by Cantplay »

Littlewyan wrote:What Amp is this John? Sounds pretty good.
Guytronix Gilmore Jr.

John
Do not limit yourself to what others think is reasonable or possible.

www.johnchristou.com
User avatar
Littlewyan
Posts: 1944
Joined: Thu Sep 12, 2013 6:50 pm
Location: UK

Re: Low wattage Plexi

Post by Littlewyan »

Sweet.

I think I get it now with the 18R Resistor. As its on the 16Ohm Tap the 8Ohm Tap will only see half of that and the 4R Tap a quarter. Is this correct?
Post Reply