Guitar Valve Amp Output Transfomers - Page 2

PeterDupont · 7th April 2011, 08:45 PM

The Mercury Magnetics choke
Mercury Magnetics Axiom MAR100-C
costs around 30$.
It's a near perfect replica of the original choke, that was a little undersized, BUT tributed to the overall virtues of the amp (with hundreds of other parts that contributed to the "tone" that is hard to DIY.

Regards, Peter

danFrank · 7th April 2011, 09:32 PM

In my opinion, Mercury Magnetics' products are WAY too overpriced. They justify it with long winded maketing mumbo jumbo to make it seem that their transformers are unique and will make you sound like Hendrix when you play through their transformers. This might fly with Hi-Fi transformers, but quite frankliy, guitar transformers are not wound that critically. In fact to get that "classic" tone, the cheaper the output transformer is wound, usually the better.
I guess they charge so much in order to pay their marketing dept.
Daniel

Try Triode Electronics or Antique Electronic Supply for Transformers / chokes. Their prices are better.

shunt94 · 7th April 2011, 09:45 PM

Hey,

Thank you all for the feedback!
I've got the power Transformer off Ebay today. So, after checking to see if the voltages are correct, Il think about investing more money into building the 100w version of this amp... I'll have to think about that though... I may just make the 50w version and if that sounds awful, build the 100w version

ChrisA: Thanks for the info!.. .I think il take your advice and buy everything at once, It seems like a plan!.. I'll buy a separate output transformer as well

tinitus: Yea, This will be my first amp. My brother built a hi-fi amp and got loads of info from this site! I was just hoping to do the same. I think I should be able to follow the diagram... but I'll need to do a lot of testing! Thanks for the extra diagram though, I may build this as a test and then just go up from there

Many Thanks to everyone else as well! - Answered all my questions!

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
any advice on how to match a headphone level output to valve amp input levels?	mondogenerator	Headphone Systems	1	18th December 2009 03:08 AM
A valve pre amp for my disco and electric guitar.	nigelwright7557	Tubes / Valves	4	12th June 2008 10:44 PM
big valve traffo for guitar amp?	Craig405	Tubes / Valves	15	9th October 2007 09:53 PM
Using Telefunken "Tank" transfomers for a single ended el84 amp?	ark	Tubes / Valves	13	8th March 2004 11:32 PM

New To Site?	Need Help?
Register to Participate Search Privacy Statement Contact Us	Frequently Asked Questions Did you forget your password? Mark Forums Read


	Please consider donating to help us continue to serve you. Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving

7th April 2011, 08:45 PM	#11
PeterDupont diyAudio Member Join Date: Mar 2011 Location: Copenhagen	The Mercury Magnetics choke Mercury Magnetics Axiom MAR100-C costs around 30$. It's a near perfect replica of the original choke, that was a little undersized, BUT tributed to the overall virtues of the amp (with hundreds of other parts that contributed to the "tone" that is hard to DIY. Regards, Peter

7th April 2011, 09:32 PM	#12
danFrank diyAudio Member Join Date: May 2005 Location: California	In my opinion, Mercury Magnetics' products are WAY too overpriced. They justify it with long winded maketing mumbo jumbo to make it seem that their transformers are unique and will make you sound like Hendrix when you play through their transformers. This might fly with Hi-Fi transformers, but quite frankliy, guitar transformers are not wound that critically. In fact to get that "classic" tone, the cheaper the output transformer is wound, usually the better. I guess they charge so much in order to pay their marketing dept. Daniel Try Triode Electronics or Antique Electronic Supply for Transformers / chokes. Their prices are better.

7th April 2011, 09:45 PM	#13
shunt94 diyAudio Member Join Date: Apr 2011	Hey, Thank you all for the feedback! I've got the power Transformer off Ebay today. So, after checking to see if the voltages are correct, Il think about investing more money into building the 100w version of this amp... I'll have to think about that though... I may just make the 50w version and if that sounds awful, build the 100w version ChrisA: Thanks for the info!.. .I think il take your advice and buy everything at once, It seems like a plan!.. I'll buy a separate output transformer as well tinitus: Yea, This will be my first amp. My brother built a hi-fi amp and got loads of info from this site! I was just hoping to do the same. I think I should be able to follow the diagram... but I'll need to do a lot of testing! Thanks for the extra diagram though, I may build this as a test and then just go up from there Many Thanks to everyone else as well! - Answered all my questions!