SIR #34 and #36 Frank Levi Mods in one Amp

[anitoli]

My 2203X came with this inscription on the shield.



Last time i took a quick look it seemed to appear like all the parts matched the schematic, but some resistor leads has solder residue on them. Maybe have to look again at it.

 

[anitoli]

Here is an ok gut shot of it:

 

[lespaul6]

calling santiago.... how does this layout look to you..accurate?

 

[Gblev]

calling santiago.... how does this layout look to you..accurate?

It's close, but not accurate.

 

[lespaul6]

It's close, but not accurate.

feel free to elaborate

 

[Gblev]

This appears to have a safe shield and not the hot-shield. The hot-shield plays a part in the sound of this mod. The safe shield has a similar sound, but is slightly different. It will work for those who are uncomfortable with a hot-shield. The plate is bypassed with a 500p, but 470p works. The cathode is a .47uF over an 820r, not 1k. The presence cap is .1uF, not .68uF. This is what I see off hand without looking too much into it. In the end, these can be things someone changes to tweak the sound to the way they like, or to feel more comfortable about the amp and they will still sound similar, maybe just a slightly different flavor and attitude.

 

[lespaul6]

This appears to have a safe shield and not the hot-shield. The hot-shield plays a part in the sound of this mod. The safe shield has a similar sound, but is slightly different. It will work for those who are uncomfortable with a hot-shield. The plate is bypassed with a 500p, but 470p works. The cathode is a .47uF over an 820r, not 1k. The presence cap is .1uF, not .68uF. This is what I see off hand without looking too much into it. In the end, these can be things someone changes to tweak the sound to the way they like, or to feel more comfortable about the amp and they will still sound similar, maybe just a slightly different flavor and attitude.

Thanks for the intel... do you mod amps over there in Tampa?

 

[Gblev]

Thanks for the intel... do you mod amps over there in Tampa?

You're welcome. Sorry, I don't mod amps, just my own.

 

[Bloodrock]

Just wanted to thank Santiago for posting the new info here even tho he doesn't work for marshall anymore. Thank you sir.

 

[lespaul6]

Just wanted to thank Santiago for posting the new info here even tho he doesn't work for marshall anymore. Thank you sir.

I thought he recently returned to Marshall? not sure

 

[NoelH]

I owned a Ceriatone 35 for about a year and a half. I liked it, but didn't love it. I thought the "Appetite" type tone would work for me since I don't use a pick. I use a kind of 'claw-hammer' thing with my thumb and two fingers. I now use a DSL 50 with ClassicTone choke.

But I could dial in some tones that I thought got very close to that sound. I switched it over to KT66's interestingly, and it became much more touch-sensitive under the fingers. But ultimately, I decided it wasn't for me.