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Deciding which 460 mod
Old 7th December 2009 | Show parent
  #31
Lives for gear
 
Michael_Joly's Avatar
 
🎧 15 years
Hey Dave, thanks for popping in! I still owe you an email - once I dig through my inbox avalanche I'll do it, promise!

You da 460 man!

I held off working on this mic until I could bring something unique and personal to it - my MJE-K47 caspule, the "Floating Top" headbasket rebuild I'm fond of and a special sauce of capacitor types. I'd be interested in hearing your thoughts on the subject of cathode bias in plate-output circuits.
Old 20th December 2009 | Show parent
  #32
Here for the gear
 
🎧 10 years
460 mod with Lundahl Transformer

Hey guys,

Perhaps you could help me. I recently modded my Apex 460 with a Lundahl LL1578 transformer and liked the sound, but am still not entirely happy with it. I am considering doing the full C12 mod that so many folks have done, but am unsure if I should remove the cathode follower circuit or not with this transformer?

http://www.lundahl.se/pdfs/datash/1578_8xl.pdf

I have not made any other mods (other than removing C7) to the mic and have a 12AT7 tube that I could throw in until I get a 6072.

I will be the first to admit that I am an entry level home hobbiest when it comes to electronics; so, any advice would be greatly appreciated!

cam
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