Power transformer sag ?
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- Tone Slinger
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Power transformer sag ?
Which power transformers being made currently replicate the proper 'sag' in a dimed plexi ?
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- N3m0 7h3 Fi5h
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Re: Power transformer sag ?
1. RACKSYSTEMS wrote:
Wow it's amazing what theory's can come about here. You want a transformer that does the sag the classic tone one does. Or the Marstran. The 100 watt amp I worked on was the amp on all the records. This is straight from Ed.
2. Roe wrote:
yes, the marstran 1203-80s and t2562s sag like the originals do (roughly 90v at full distortion). Its nice to hear that the classictone PTs also has the correct sag.
http://forum.metroamp.com/viewtopic.php ... 72#p402072" onclick="window.open(this.href);return false;
Wow it's amazing what theory's can come about here. You want a transformer that does the sag the classic tone one does. Or the Marstran. The 100 watt amp I worked on was the amp on all the records. This is straight from Ed.
2. Roe wrote:
yes, the marstran 1203-80s and t2562s sag like the originals do (roughly 90v at full distortion). Its nice to hear that the classictone PTs also has the correct sag.
http://forum.metroamp.com/viewtopic.php ... 72#p402072" onclick="window.open(this.href);return false;
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Re: Power transformer sag ?
I have personal experience with the following transformers; Mercury Mag, Classic Tone, Heyboer and a couple others, BUT NOT the Marstran. I can tell you that NON of the transformers sag like the original T2562 (or 1203-80 for that matter). I am not calling or implying Dave F. is a liar (please do not mis-understand). I'm only speaking from my experience and I can promise you I've built more than a few Marshall Plexi clones (as well as other amps I've designed). I have a full work bench with all the test equipment necessary and then some (with a graduate level Electrical Engineering background). In my humble and honest opinion, the farthest from the original transformers, both power and output, are the Classic Tones and Mercurys; with the closets (of the ones I listed) being Heyboer.N3m0 7h3 Fi5h wrote:1. RACKSYSTEMS wrote:
Wow it's amazing what theory's can come about here. You want a transformer that does the sag the classic tone one does. Or the Marstran. The 100 watt amp I worked on was the amp on all the records. This is straight from Ed.
2. Roe wrote:
yes, the marstran 1203-80s and t2562s sag like the originals do (roughly 90v at full distortion). Its nice to hear that the classictone PTs also has the correct sag.
http://forum.metroamp.com/viewtopic.php ... 72#p402072" onclick="window.open(this.href);return false;
That said, I will offer my opinion on the "closest" sounding (and acting) power and output transformers I've used; and those are the M E R R E N Audio trannys. NOTHING comes remotely close to them. From the construction, material, electrical / magnetic characteristics, reliability, frequency sweep, tonal color / character / reaction in sound; THEY ARE DEAD ON AMAZING!! (Good luck getting the T2562 from Chris ..... I was lucky enough to buy two a while back ). I've used his T2562 and his 1203-80 for a "Plexi" 100W (EVH type and the "normal" builds) with GREAT results. I'm very happy with them to say the least, and a great guy to deal with. Hope that helps ......Good luck in your build.
Ed
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Re: Power transformer sag ?
Why would you say that? I know a lot of guys are using Chris' trannies down in the basement.EddyInChicago wrote: (Good luck getting the T2562 from Chris .....
Ed
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- vanhalen5150
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Re: Power transformer sag ?
Yeah, I have a T2562 and just got a 10,000 series 1203-80 from him a few months ago.
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Re: Power transformer sag ?
I say that guys because I've been in touch with Chris on a regular basis and have been told that he is having a hard timergorke wrote:Why would you say that? I know a lot of guys are using Chris' trannies down in the basement.EddyInChicago wrote: (Good luck getting the T2562 from Chris .....
Ed
acquiring the iron needed for his trannys. Someone I just communicated with infomed me, just last night, that he spoke to Chris recently (a couple days ago) and was told "a new batch" will be ready in 2-3 weeks. Chris did, or does, have the 1203-80 whenever I needed it. However, after he ran dry of the T2562, he has had problems getting the material. This is from my experience.
Ed
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Re: Power transformer sag ?
Ed, I have been told the same thing about M E R R EN. I was told to go with them.EddyInChicago wrote:I have personal experience with the following transformers; Mercury Mag, Classic Tone, Heyboer and a couple others, BUT NOT the Marstran. I can tell you that NON of the transformers sag like the original T2562 (or 1203-80 for that matter). I am not calling or implying Dave F. is a liar (please do not mis-understand). I'm only speaking from my experience and I can promise you I've built more than a few Marshall Plexi clones (as well as other amps I've designed). I have a full work bench with all the test equipment necessary and then some (with a graduate level Electrical Engineering background). In my humble and honest opinion, the farthest from the original transformers, both power and output, are the Classic Tones and Mercurys; with the closets (of the ones I listed) being Heyboer.N3m0 7h3 Fi5h wrote:1. RACKSYSTEMS wrote:
Wow it's amazing what theory's can come about here. You want a transformer that does the sag the classic tone one does. Or the Marstran. The 100 watt amp I worked on was the amp on all the records. This is straight from Ed.
2. Roe wrote:
yes, the marstran 1203-80s and t2562s sag like the originals do (roughly 90v at full distortion). Its nice to hear that the classictone PTs also has the correct sag.
http://forum.metroamp.com/viewtopic.php ... 72#p402072" onclick="window.open(this.href);return false;
That said, I will offer my opinion on the "closest" sounding (and acting) power and output transformers I've used; and those are the M E R R E N Audio trannys. NOTHING comes remotely close to them. From the construction, material, electrical / magnetic characteristics, reliability, frequency sweep, tonal color / character / reaction in sound; THEY ARE DEAD ON AMAZING!! (Good luck getting the T2562 from Chris ..... I was lucky enough to buy two a while back ). I've used his T2562 and his 1203-80 for a "Plexi" 100W (EVH type and the "normal" builds) with GREAT results. I'm very happy with them to say the least, and a great guy to deal with. Hope that helps ......Good luck in your build.
Ed
What is Dave F using for OTs? Is Marstran his go to?
Looking at both M E R R E N and Marstran right now. $170 isn't bad for the OT.. through Marstran. Not seeing prices on M E R R E N
- vanhalen5150
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Re: Power transformer sag ?
Well thats good to know he's not just throwing some shit together and selling as is. Keeping with the original specs says a lot about how he feels about his product. The 1203-80 I got from him has a 2.5" stack and some old black bell cover on it. It looks like Darth Vaders helmet. He did say he had some C1998 OT's at the time I talked to him as well. I've never waited more than a day for him to get back to me either.EddyInChicago wrote:I say that guys because I've been in touch with Chris on a regular basis and have been told that he is having a hard timergorke wrote:Why would you say that? I know a lot of guys are using Chris' trannies down in the basement.EddyInChicago wrote: (Good luck getting the T2562 from Chris .....
Ed
acquiring the iron needed for his trannys. Someone I just communicated with infomed me, just last night, that he spoke to Chris recently (a couple days ago) and was told "a new batch" will be ready in 2-3 weeks. Chris did, or does, have the 1203-80 whenever I needed it. However, after he ran dry of the T2562, he has had problems getting the material. This is from my experience.
Ed
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Re: Power transformer sag ?
Well Classic Tones plexi laydown power on the bench was sagging exactly like the measurements I took off several 12 series amps. Please note all the amps had the same new filter caps. Chris's transformers are great also but I find them a bit more fat and classic sounding then more of the vh type thing. Marstran are also good. I use a custom output transformer from heyboer for my stuff. To each his own it's all a complete recipe. Sum of all the parts together.
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Tonemerchants.com
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Racksystems@yahoo.com
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Re: Power transformer sag ?
I agree, I am more and more finding that out
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Re: Power transformer sag ?
Thanks Dave, I will be checking out Classic Tone for sure.RACKSYSTEMS wrote:Well Classic Tones plexi laydown power on the bench was sagging exactly like the measurements I took off several 12 series amps. Please note all the amps had the same new filter caps. Chris's transformers are great also but I find them a bit more fat and classic sounding then more of the vh type thing. Marstran are also good. I use a custom output transformer from heyboer for my stuff. To each his own it's all a complete recipe. Sum of all the parts together.
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Re: Power transformer sag ?
Stupid question here. Does a 50 watt use a different Power Transformer than a 100 watt?
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Re: Power transformer sag ?
Yesjnew wrote:Stupid question here. Does a 50 watt use a different Power Transformer than a 100 watt?
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Re: Power transformer sag ?
Hmm. OK.
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Re: Power transformer sag ?
Drake 1202-118jnew wrote:Stupid question here. Does a 50 watt use a different Power Transformer than a 100 watt?