Are you still interested in MP equipment and schematics and the like? I was the executor of Mirko’s estate and I still have some of that.

Are you still interested in this Mirko topic? I waas the executor of his estate and am now looking to finally dal with his record collections and various ther pieces of his equipment.

Chris,

Thanks for the quick response.
It is too bad you sold that amp, I would love to add it to my modest collection.
I happen to have a few pieces of MP’s gear including (3) televisions, and pair of OTL amplifiers.

https://www.dropbox.com/s/ticncsaanr0al91/2015-12-05%2014.56.06.jpg?dl=0
Above is a photo of a home installation setup by MP Engineering that I bought from a fellow in the Detroit area. It features a pair of 32 ohm speakers with Bozak drivers, a Fisher tuner, and a Dual TT (not original) The console houses a pair of pre-amps with separate DC power supplies that were designed and built by MP.
About 6 months after I acquired this, I was able to locate the matching OTL power amps:
https://www.dropbox.com/s/or1b5m8lswie7mp/IMG_7380.JPG?dl=0

I probably have enough gear and info to do feature on Mirko Paneyko, if you are interested.

Thanks,
Joe Y.

Hi Joe. Since I found this amp in fairfield CT, you are likely correct. I sold it long before I had heard of Mirko, and I now regret having done so, as I have read about Mirko in old Journals and he was an incredible engineer and I’d like to have one of his pieces. I bet I will find another, though. CR

I know this is an old post, but I was wondering if you were ever able to find a schematic of this amp.
Also wondering if you were able to confirm it’s origin. The reason I ask this is because I know of a small company that built equipment almost exactly like the unit you have, but it is not the one Sam has identified.

I hope you are able to view these photos:

https://www.dropbox.com/s/6jn0ly9wzdq41hx/IMG_0125.JPG?dl=0

https://www.dropbox.com/s/255b9ok0wfxxy5x/IMG_0126.JPG?dl=0

https://www.dropbox.com/s/gmxb3yahuosskdy/IMG_0127.JPG?dl=0

As you can see, the similarities are many: the font used for tube labels, the font used on the transformers and on the chassis, the part number range on the chassis, the painted rivets, the 3- pot remote control, the removal of the factory labels from the transformers are ll the same. I can point out several more simularities, but the one that jumps out is the “MP” on the remote. I believe these are the initials of Mr. Mirko Paneyko – founder of MP Engineering Corp. of Fairfield Conn.
I have a fair amount of information on MP Engineering and this certainly looks like their work.

With all due respect to Mr. Sam, I do realize there were many builders and installers back then and I could be incorrect in my train of thought. I just need to bring this to your attention.

Thanks,

I agree about the RCA book. Here’s a pdf, but it’s very dull. The original two color cover art is outstanding and would make a great poster today.

~.tubebooks.org/file_downloads/RCA_HiFi.pdf

A great percentage of old consumer electronics were actually variations on “cookbook” design then and now. The cookbooks then were transformer and tube manuals. They all had applications engineers that built circuits and published them.

The interesting electronics are those that WERE NOT cookbook design. McIntosh amplifiers, Tektronix scopes and National, Collins and Racal RF gear.

That isn’t to say cookbook designs are all bad. Most were good in fact.

Probably the best designed audio power amplifier, aside from McIntosh and larger Altecs, was the RCA design found in most later tube manuals and the HF-110 pamphlet. Using an off the shelf output transformer it would better the equivalent McIntosh within the audio band, albeit with higher quiescent power dissipation.

The HF-110 audio booklet has a cover that is quintessential fifties line art and is rare because art types frame them for decoration. It should be reproduced with a two color offset cover on good glossy stock. Someone somewhere has a .pdf but it is pretty crappy looking.

Hi Sam. great to hear from you. Would you possibly have a schematic for this item? i’d love to be able to figure out what’s going on with the preamp section. best wishes, c.