S.I.R. 100W SuperLead Schematic pt. II

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snakepit86
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Re: S.I.R. 100W SuperLead Schematic pt. II

Post by snakepit86 » Thu Nov 02, 2017 4:57 pm

CoffeeTones wrote:
Thu Nov 02, 2017 4:53 pm
snakepit86 wrote:
Thu Nov 02, 2017 4:50 pm
CoffeeTones wrote:
Thu Nov 02, 2017 2:42 pm
I did not write that. It was supposedly a quote of Frank Levi. BRBS is not the closest sounding to me. BRBS did capture the sound at one point but lost it and never got it back.

I also think the .1uF sucks. It is too thin. #34 is actually too thin, so the .68uF presence works good. Also, remember #34 had the bright cap on a switch according to the Santiago scheme. I'd have the 150k on a switch too.

The unprocessed, #36 MK V was very likely fatter and more Fender like than most think. Most everyone shoots for the processed tone. Listen to the beginning of "My Michele" and "Don't Cry" in the Ritz video https://www.youtube.com/watch?v=75NEcJL ... e=youtu.be
sorry, i mean that it was frank's words, i asked if you posted this quote before because it is familiar to me.

I was talking about the .1 cathode cap, not the presence cap
So was I.
im glad that we agreed :hairband: :hairband: :hairband: :hairband: :hairband:

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Re: S.I.R. 100W SuperLead Schematic pt. II

Post by Unique » Fri Nov 03, 2017 3:16 pm

sonoman1979 wrote:
Tue Oct 31, 2017 1:21 am
Does anybody knows what amp did slash use in this concert, jcm800?

https://youtu.be/75NEcJLhlcw
Slash was using Great White's 2210's for the '88 Ritz show. Supposedly they were stock.

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snakepit86
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Re: S.I.R. 100W SuperLead Schematic pt. II

Post by snakepit86 » Wed Nov 08, 2017 12:51 pm

Unique wrote:
Fri Nov 03, 2017 3:16 pm
sonoman1979 wrote:
Tue Oct 31, 2017 1:21 am
Does anybody knows what amp did slash use in this concert, jcm800?

https://youtu.be/75NEcJLhlcw
Slash was using Great White's 2210's for the '88 Ritz show. Supposedly they were stock.
i always thought that, thanks for confirm this.


Did anyone make a sound clip between #36 with normal TS vs 250p/56k TS?

I like the 56k on my amps because it smooths a little mids for the clean channel (plexi style)

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Re: S.I.R. 100W SuperLead Schematic pt. II

Post by sonoman1979 » Fri Nov 10, 2017 5:36 pm

Unique wrote:
Fri Nov 03, 2017 3:16 pm
sonoman1979 wrote:
Tue Oct 31, 2017 1:21 am
Does anybody knows what amp did slash use in this concert, jcm800?

https://youtu.be/75NEcJLhlcw
Slash was using Great White's 2210's for the '88 Ritz show. Supposedly they were stock.
Thanks for the information Unique :thumbsup:

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Re: S.I.R. 100W SuperLead Schematic pt. II

Post by sonoman1979 » Sun Nov 12, 2017 6:44 pm

Hi guys, do you know what should be the B+ voltage on power tubes and PI node on a 77' JMP super lead? Thanks :thumbsup:

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Re: S.I.R. 100W SuperLead Schematic pt. II

Post by CoffeeTones » Sun Nov 12, 2017 6:56 pm


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Re: S.I.R. 100W SuperLead Schematic pt. II

Post by sonoman1979 » Sun Nov 12, 2017 8:31 pm

Thanks Duane :clap:

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Re: S.I.R. 100W SuperLead Schematic pt. II

Post by Roe » Tue Nov 14, 2017 2:41 pm

sonoman1979 wrote:
Sun Nov 12, 2017 6:44 pm
Hi guys, do you know what should be the B+ voltage on power tubes and PI node on a 77' JMP super lead? Thanks :thumbsup:
the 100w have much higher voltages than the 50w. Amps in this period often have 460-470v on the plates on the 100w models
http://www.myspace.com/20bonesband" onclick="window.open(this.href);return false;
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Super 100 amps: 1202-119 & 1202-84
JTM45 RS OT JTM50 JMP50 1959/2203/34/39

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Re: S.I.R. 100W SuperLead Schematic pt. II

Post by sonoman1979 » Tue Nov 14, 2017 6:13 pm

Roe wrote:
Tue Nov 14, 2017 2:41 pm
sonoman1979 wrote:
Sun Nov 12, 2017 6:44 pm
Hi guys, do you know what should be the B+ voltage on power tubes and PI node on a 77' JMP super lead? Thanks :thumbsup:
the 100w have much higher voltages than the 50w. Amps in this period often have 460-470v on the plates on the 100w models
Thanks, any idea about the voltage on the phase inverter node?

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Re: S.I.R. 100W SuperLead Schematic pt. II

Post by CoffeeTones » Tue Nov 14, 2017 8:55 pm

Probably around 320V if you scale these down. http://www.mhuss.com/MyJCM/JCM800_2204.gif
Yes, #10 is 300V to 330V depending on the amp model http://www.ampspecs.com/wp-content/uplo ... matics.gif

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Re: S.I.R. 100W SuperLead Schematic pt. II

Post by sonoman1979 » Wed Nov 15, 2017 2:28 am

Great! :thumbsup:

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Re: S.I.R. 100W SuperLead Schematic pt. II

Post by sonoman1979 » Thu Nov 23, 2017 3:06 pm

Hi,
I need to replace a couple of 47uf 450v aluminum electrolytic capacitor on the preamp section. Must be radial and no more than 18mm of diameter. I would like to know if anybody knows wich series of Nichicon should be best for this application.
I'm planing to buy this on mouser.
Thecnical support on mouser told me that I should choose caps that offer more hours of life and high ripple current, is that correct?
Thanks.
Last edited by sonoman1979 on Thu Nov 23, 2017 3:27 pm, edited 1 time in total.

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Re: S.I.R. 100W SuperLead Schematic pt. II

Post by dukeamps » Tue Nov 28, 2017 4:29 pm


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Re: S.I.R. 100W SuperLead Schematic pt. II

Post by dukeamps » Wed Nov 29, 2017 4:57 am


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Re: S.I.R. 100W SuperLead Schematic pt. II

Post by dukeamps » Thu Nov 30, 2017 3:15 am


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