the path to electronics

Gregadd

WBF Founding Member
Apr 20, 2010
6,616
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48
Metro DC
#1
I count Georges involvement with OTLS.
the Electrocompaniet
NYAL Moscode 300/600/it/superit
Moscode 402au

George how did you get involved in audio design? What training do you have and how did you get involved in audio?Most impotantly, How did you hook up with Harvey Rosenberg?
 

MylesBAstor

Member Sponsor & WBF Founding Member
Apr 20, 2010
11,222
3
38
#2
I count Georges involvement with OTLS.
the Electrocompaniet
NYAL Moscode 300/600/it/superit
Moscode 402au

George how did you get involved in audio design? What training do you have and how did you get involved in audio?Most impotantly, How did you hook u p with Harvey Rosenberg?
Greg:

George also did a lot of work for David Chesky -- and don't forget his small signal tube tester.

I'll let George fill in about his stuff for David but there was some pretty neat things going on there!
 

Gregadd

WBF Founding Member
Apr 20, 2010
6,616
38
48
Metro DC
#5


I should have kept them 300 and 600. Oh well variety is thye spice of life. Why else does the Earth rotate?
 
#6


I should have kept them 300 and 600. Oh well variety is thye spice of life. Why else does the Earth rotate?

Interesting.. the 600 in the center has a power transformer and output stage/heatsink fan assembly identical to the Hafler 500 amplifiers.. Those are probably 2SJ56 and 2SK176 MOSFETs in the output stage. I just did a full PM on all four of my Haflers and so they're components' appearance and size are totally fresh in my consciousness.

I'm sure these amps sound great. The MOSFET output is very clean and musical and I use them exclusively for MF and HF use for that reason.
 

Gregadd

WBF Founding Member
Apr 20, 2010
6,616
38
48
Metro DC
#7
I'm sure these amps sound great. The MOSFET output is very clean and musical and I use them exclusively for MF and HF use for that reason.

The real test for audio equipment is after all the hoopla do you come home after work turn it on and and get a big smile on your face. The Moscode always passed that test.

Moscode 402au
 

Attachments

#11
I'm sure these amps sound great. The MOSFET output is very clean and musical and I use them exclusively for MF and HF use for that reason.

The real test for audio equipment is after all the hoopla do you come home after work turn it on and and get a big smile on your face. The Moscode always passed that test.

Moscode 402au
Absolutely. Every time. Depending on the music, the range of emotions can span a wide gamut.
Anecdote: a lady friend of our family who owns mostly Denon electronics and B&W 802 speakers, comes over here with her CDs when she really wants to listen seriously to the music. I have a lot of friends that do that on a semi-regular basis.
 

Gregadd

WBF Founding Member
Apr 20, 2010
6,616
38
48
Metro DC
#12
Modification for 402au
And for a little more we will upgrade yours to Vishay's and Mundorf Supreme Gold-Silver-Oil Caps. Clean with new tubes.Black or Silver FaceplateA Great Deal! Only $4500.00!! w/Vishay/Mundorf upgrade $4995.00Free Shipping in the Continental US. The Vishay/ Mundorf upgrade replaces the crititcal negative feedback resistors with Vishay S102 ultra low noise resistors. Then we replace 2 of the coupling capacitors with Mundorf Supreme Gole[d}-Silver-Oil caps. The resulting improvement is a jump in performance from Great to MAGIC. Deeper extended soundstage, better bass, Futterman like high's. It's holographic. Everyone who has done this upgrade says it is well worth it. The upgrade is also available for 401HR's and 402Au's for $799.
http://www.lautsprechershop.de/hifi/cond_mun_en.htm#silver_gold_oil
 

Gregadd

WBF Founding Member
Apr 20, 2010
6,616
38
48
Metro DC
#13
Not to be misleading. That price is for a review sample for sale on Audiogon. List price $6500 plus upgrade. Still the best bargain in audiophile amplifiers.
 

Gregadd

WBF Founding Member
Apr 20, 2010
6,616
38
48
Metro DC
#14
Jsut to update. I have sold the 300, 600,401hr,402au. Mostly for upgrade. On Georges behalf I will accept the compliments.One word_ wow!/ So impressed was the purchaser of the 402au he tracked me down on this forum. He wanted to know what I had replaced the amp with. What could possibly be better?In addition a local dealer who does not sell the Mborught one to a club metting. His point was look what $6500 will get you. geroge usesthe VS anniversary five.Enough said.
 

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