freestompboxes.org

I need a new tube for this pedal and Siegmund won't tell me the replacement tube I need. Apparently that's a trade secret for him or something. As far as I'm concerned a replacement part like a tube should never be considered a trade secret. I would have never bought this pedal if i knew i would have to mail it in and pay $60 every time it needs a single tube replaced. If anyone can tell me the correct tube type that would be awesome.

Edited: that's a bit easier to look at.


I agree.. a great case for not buying one of these.. especially if you're in another country.
Unless he can guarantee the life of a component he should make it user replaceable.

Greg_G wrote:Edited: that's a bit easier to look at.


I agree.. a great case for not buying one of these.. especially if you're in another country.
Unless he can guarantee the life of a component he should make it user replaceable.

Thank you, people got so mad at me on the gear page for talking about this and showing these pics. It was baffling to me. To my mind, if you are into your gear, you want to know as much as possible, and there is nothing wrong with taking a gutshot of a pedal you paid good money for.

pot values left to right: 1 meg log, 220k log, 22k lin, 1meg log, 1meg log, 1meg log

caps: the two little ceramic caps on top are 100pf, the one on the right is in parallel w/ the resistor. The cap next to that is 47pf also parallel w/ a resistor. The cap near the second pot is a 27pf. the little green cap near the fourth pot just has a red dot on it (no idea) There is a 47pf cap under under both the 5th and 6th pots each in parallel w/ a resistor. There is a 47pf cap in front of the 6th pot. the ceramic cap on the bottom goes between 2 of the legs it's 220pf.

The three silver cylinders all look the same. I don't know what they are. caps? there is also a similar but smaller burnt orange cylinder near the 6th pot.

staticinfinity wrote: Thank you, people got so mad at me on the gear page for talking about this and showing these pics. It was baffling to me. To my mind, if you are into your gear, you want to know as much as possible, and there is nothing wrong with taking a gutshot of a pedal you paid good money for.

They got mad with you because you expected to be able to keep your expensive pedal working ?


It's your pedal now and you can do what you want with it.
Hopefully someone can identify the tubes or offer up something that will work.

Greg_G wrote:

staticinfinity wrote: Thank you, people got so mad at me on the gear page for talking about this and showing these pics. It was baffling to me. To my mind, if you are into your gear, you want to know as much as possible, and there is nothing wrong with taking a gutshot of a pedal you paid good money for.

They got mad with you because you expected to be able to keep your expensive pedal working ?


It's your pedal now and you can do what you want with it.
Hopefully someone can identify the tubes or offer up something that will work.

They said it's against the rules to post gut shots and manufactures could sue and if siegmund doesn't want me to know the tube type I should just accept that. I'm glad though, that's why I found this forum and this seems to be a better venue for this sort of thing, with a lot more knowledgeable people.

I tried to link to here from the thread over there and they have an algorithm that automatically censors this url.

http://www.thegearpage.net/board/showth ... p?t=688939 but I see i can link from here to there. just a bunch of cork sniffer there anyway. This is more my scene.

After looking these pics over i realized the pots are obscuring part of the circuit. I will take some shots of what's under the pots as well and post those soon. If anyone want's to request other pics or info, i will do my best to answer. My knowledge of electronics is probably a lot more limited than a lot of the members here. I have repaired my share of gear, but I have never built a single guitar pedal, or electronic circuit, so bear with me if i don't understand something.

staticinfinity wrote:pot values left to right: 1 meg log, 220k log, 22k lin, 1meg log, 1meg log, 1meg log

caps: the two little ceramic caps on top are 100pf, the one on the right is in parallel w/ the resistor. The cap next to that is 47pf also parallel w/ a resistor. The cap near the second pot is a 27pf. the little green cap near the fourth pot just has a red dot on it (no idea) There is a 47pf cap under under both the 5th and 6th pots each in parallel w/ a resistor. There is a 47pf cap in front of the 6th pot. the ceramic cap on the bottom goes between 2 of the legs it's 220pf.

The three silver cylinders all look the same. I don't know what they are. caps? there is also a similar but smaller burnt orange cylinder near the 6th pot.

I made a mistake there. The little ceramic cap on the LEFT is an parallel with a resistor and the cap next to THAT is 47pf also parallel w/ a resistor. Hope that doesn't mess anyone up.

staticinfinity wrote:
They said it's against the rules to post gut shots and manufactures could sue ......

Really ??

What about this thread then:
http://www.thegearpage.net/board/showth ... p?t=481823

The tubes look to me very much like the unbranded 6111 that I buy from ebay seller w.e.s.1

If you wanna post up a traced schematic I could confirm this.

frequencycentral wrote:The tubes look to me very much like the unbranded 6111 that I buy from ebay seller w.e.s.1

They have to be some 6xxx and I also think 6111 is the most likely based on reading what the different 6xxx tubes are supposed to sound like. A couple people have said 6021w but siegmund told me it's not a 6021 (not that I would trust him). To my knowledge the only other tube it could be is 6112?

Greg_G wrote:

staticinfinity wrote:
They said it's against the rules to post gut shots and manufactures could sue ......

Really ??

What about this thread then:
http://www.thegearpage.net/board/showth ... p?t=481823

really. I guess they deleted the thread and now i'm banned. I posted the link to my thread there above, but when i tried to click it just now it went to page that says i'm banned for "trolling".

staticinfinity wrote:http://www.thegearpage.net/board/showth ... p?t=688939 but I see i can link from here to there. just a bunch of cork sniffer there anyway. This is more my scene.

This is the link, but when i click it, it says i'm banned so i assume it's deleted now.

From the shots you've posted I see no voltage multiplier in the circuit. Therefore highly unlikely that it's a 6112, as these just don't work well at low voltage.

Also looks to me as there is a plate resistor at pins 1 and 8, so that would suggest 6### as opposed to a couple of pentodes.

If i was planning to market a low voltage submini dual triode based pedal (which I am), I'd use 6111, as they are plentiful and cheap. Do an ebay search, the 6111's you'll find from the guy I mentioned are unbranded and look identical.

No offence, but Seigmund seems a bit of a jerk to me.

frequencycentral wrote:The tubes look to me very much like the unbranded 6111 that I buy from ebay seller w.e.s.1

If you wanna post up a traced schematic I could confirm this.

I don't think i'm qualified to draw a schematic. I will try to put up enough pics so that someone more knowledgeable can draw one.

The Gear Page can get ridiculous. I can understand a manufacturer wanting to protect their designs, but the notion that the tube type is proprietary information is laughable. Also, there seems to be an impossibly arcane code over at TGP regarding what is ok to clone and what is not ok.


Anyway, you probably don't need the entire schematic drawn to figure out what tube type is in there. The plate resistors might tell the story. 6111 and 6021 types have a much lower plate resistance than the 6112. Who knows if the builder followed typical practices, but that is where to start looking. I'll look at the pictures and try to figure out what resistors are on pins 1 and 8.

staticinfinity wrote:I need a new tube for this pedal and Siegmund won't tell me the replacement tube I need.

So bottom line? Siegmund, whoever the bloke is, got an option.

Either he tells you what tube you need. You might discuss a mutually signed agreement together not to share this info to the outside world. Easy.

Or Siegmud will find his name all over the web with additional attention to very poor customer support. Especially since people will start to experiment to do the fix themselves in an alternative way, often leading to poorer quality. But still bearing the Siegmund name....

Charging 60 bucks for support like this is just a little much....

Could be helpful to know the voltage of the power supply as well as the voltage at each tube pin.

Wow. What a bunch of douchebags. Between the asswipe that built the pedal and the oberführers at TGP, I'm not sure who to be more appalled by.

Deric wrote:Could be helpful to know the voltage of the power supply as well as the voltage at each tube pin.

Indeed. If we know these things it will be easier to figure out the "proprietary" tube type.

Seriously, what a dick move by Siegmund (who I've never heard of before now).