#0150

GTSjoe · Post by **GTSjoe** » Fri Jun 17, 2022 4:30 am

Pics of #0150

ijedouglas · Post by **ijedouglas** » Fri Jun 17, 2022 11:44 pm

GTSjoe wrote: ↑Fri Jun 17, 2022 4:30 amPics of #0150

Thanks for posting. Do you have any more info on these 2 amps?

GTSjoe · Post by **GTSjoe** » Sat Jun 18, 2022 2:42 am

Your Welcome.I do work on them from time to time.Along with two others which I never bothered to take pics of.All I vaguely know is,One was originally built for someone in Timbuk 3? and the other was for someone in Europe.Sweden,Norway?I do have more pics of these two.The current owner I will keep anonymous.All 4 of the amps are very different from each other as expected.#0130 has the values of some components written on them by Dumble.Some tubes are signed by him too!They all sound very good although not my cup 'o tea.

Bombacaototal · Post by **Bombacaototal** » Sat Jun 18, 2022 7:05 am

Many thanks for sharing these! Really appreciate it! Also thanks for sharing the story

bepone · Post by **bepone** » Sat Jun 18, 2022 7:19 am

thx for sharing! very interesting to see resistor composition, this one has the most darker sounding Piher in NFB..probably below goop is also carbon film, plus metal film for anodes.
here will be good to measure ratio and vol pots (100k=?) and output cupling caps in od section to these pots. some positive feedback in first and second stage, and also nfb wire is going together with anode in PI

Aaron · Post by **Aaron** » Mon Jun 20, 2022 10:17 am

Thanks for the pics!
The current owner did post a gut shot on his Insta a while back, but I think its been taken down now.

Would love to see pics of the others.

Thanks,
Aaron

talbany · Post by **talbany** » Thu Jul 21, 2022 8:56 am

GTSjoe wrote: ↑Sat Jun 18, 2022 2:42 am Your Welcome.I do work on them from time to time.Along with two others which I never bothered to take pics of.All I vaguely know is,One was originally built for someone in Timbuk 3? and the other was for someone in Europe.Sweden,Norway?I do have more pics of these two.The current owner I will keep anonymous.All 4 of the amps are very different from each other as expected.#0130 has the values of some components written on them by Dumble.Some tubes are signed by him too!They all sound very good although not my cup 'o tea.

#0150 appears to be a high plate Skyliner w/Music Man transformers likely built in 85 or 86. (deep switch functions as mid boost.)

Btw. was this amp originally loaded with 34's?

this one has the most darker sounding Piher in NFB.

1w Piher's are fairly common resistor used in GNFB spot in 4th/5th generations including most gold script Music man amps I have seen. Here is another L.P.S w/MM iron.

PreampII.jpg

Btw. Interesting to note 150 has no NFB around V1 so its sort of a 183 with Music Man transformers.
Tony

GTSjoe · Post by **GTSjoe** » Thu Jul 28, 2022 5:38 am

Yes,it had EL34's.Sylvania 6CA7's in it now.

talbany · Post by **talbany** » Wed Aug 03, 2022 7:30 pm

GTSjoe wrote: ↑Thu Jul 28, 2022 5:38 am Yes,it had EL34's.Sylvania 6CA7's in it now.

Yes makes sense just like HD-130's had 6CA7's

Thanks!

Tony

samtech60 · Post by **samtech60** » Sat Aug 05, 2023 8:41 pm

Thank you for post interesting

Mr. dB · Post by **Mr. dB** » Sun Aug 27, 2023 10:46 pm

Is it normal to see twist-lok capacitors in amps built this late?

jelle · Post by **jelle** » Sun Sep 03, 2023 3:42 pm

Not uncommon, but IMO this would be near the end of the sn range for the use of these caps.

The Amp Garage

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