
S.I.R. 100W SuperLead Schematic pt. II
Moderator: VelvetGeorge
- sonoman1979
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Re: S.I.R. 100W SuperLead Schematic pt. II
I think that maybe a should try to modify the input in the pcb in order to attach the 33k grid resistor directly to the tube socket pin, I remember that read somewhere that if not doing that way the amp could squeal. do you think that could solve the issue? 

- herbvis
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Re: S.I.R. 100W SuperLead Schematic pt. II
Can't hurt. I usually go with that method when its quick and easily reversible.
- sonoman1979
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Re: S.I.R. 100W SuperLead Schematic pt. II
Ummm well all the modifications that I had done to the amp we're definitely not reversible
... so let's try that

- herbvis
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Re: S.I.R. 100W SuperLead Schematic pt. II
Good luck to you.
Heres a link to a clip I made last night. I didnt spend any time dialing it in, but thought it sounded decent enough. Its the one on top called mod may21
http://www.soundclick.com/Herbvis
Heres a link to a clip I made last night. I didnt spend any time dialing it in, but thought it sounded decent enough. Its the one on top called mod may21
http://www.soundclick.com/Herbvis
- sonoman1979
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Re: S.I.R. 100W SuperLead Schematic pt. II
Thanks Herbvis, and that's a sweet tone
I really like how a 4x12 cab enhance the bass response, I wish i could buy one 


- herbvis
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Re: S.I.R. 100W SuperLead Schematic pt. II
A 4x12 really adds a lot. I was using 2x12 for a little while a few years ago because the was sick of hauling a 4x12 around all the time. When I switched back to a 4x12 things were much better.
- snakepit86
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Re: S.I.R. 100W SuperLead Schematic pt. II
yeah herb!
here is my video again, last time forum went down
https://www.youtube.com/watch?v=SaUTSB1yrAM
here is my video again, last time forum went down
https://www.youtube.com/watch?v=SaUTSB1yrAM
- herbvis
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Re: S.I.R. 100W SuperLead Schematic pt. II
Thanks man! Your clip sounds awesome!snakepit86 wrote:yeah herb!
here is my video again, last time forum went down
https://www.youtube.com/watch?v=SaUTSB1yrAM
My clip was a quick rough test. Im gonna fine tune my specs when I get a moment to do so, then ill make some more coherant clips!
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Re: S.I.R. 100W SuperLead Schematic pt. II
Everyone's getting some nice tones
Here's my latest tweaks trying to reduce the high end fizziness and shape the mids a bit more. I've put in a JJ EEC803S in the phase inverter, which has helped quite nicely and added some sweetness and also cut some bass muddiness. Changed my presence cap to 0.15u MKT1813 instead of the 0.1u Sozo nexgen. Also got a GE-7 to shape the tone and gain a bit more.
http://sclk.co/s7ywdi

Here's my latest tweaks trying to reduce the high end fizziness and shape the mids a bit more. I've put in a JJ EEC803S in the phase inverter, which has helped quite nicely and added some sweetness and also cut some bass muddiness. Changed my presence cap to 0.15u MKT1813 instead of the 0.1u Sozo nexgen. Also got a GE-7 to shape the tone and gain a bit more.
http://sclk.co/s7ywdi
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Re: S.I.R. 100W SuperLead Schematic pt. II
Nice work BRM. Is this based on the 34 spec?
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Re: S.I.R. 100W SuperLead Schematic pt. II
Thanks. No, not really like a 34. More like a '69 superlead with two added stages not as cold as a 34 style.
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Re: S.I.R. 100W SuperLead Schematic pt. II
New clip with new spec 69 lol,
with orig,
http://soundclick.com/share.cfm?id=13389891
without orig,
http://soundclick.com/share.cfm?id=13389935

with orig,
http://soundclick.com/share.cfm?id=13389891
without orig,
http://soundclick.com/share.cfm?id=13389935

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Re: S.I.R. 100W SuperLead Schematic pt. II
New 69 spec,
scom full,
http://soundclick.com/share.cfm?id=13390436
NT full,
http://soundclick.com/share.cfm?id=13390435

scom full,
http://soundclick.com/share.cfm?id=13390436
NT full,
http://soundclick.com/share.cfm?id=13390435

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Re: S.I.R. 100W SuperLead Schematic pt. II
Nigel, your best work yet, sounds just like the original .... this is 99,999987% there 

Regards
Ragnar Már
'67 JMP 50W
'82 JCM 800 1959
'83 JCM 800 2203
'87 2554
'09 Metro JMP 2204
'10 SDM 2550X
'10 Metro JMP 2203
Ragnar Már
'67 JMP 50W
'82 JCM 800 1959
'83 JCM 800 2203
'87 2554
'09 Metro JMP 2204
'10 SDM 2550X
'10 Metro JMP 2203
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Re: S.I.R. 100W SuperLead Schematic pt. II
Cheers man !RagnarMarGunn wrote:Nigel, your best work yet, sounds just like the original .... this is 99,999987% there

