MP
3189 posts
May 01, 2014
2:34 PM
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NEVER MIND. :-)
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Affordable Reed Replacement
Marks Harmonica Tune-up
Click user name MP for contact info
Last Edited by MP on May 02, 2014 9:42 AM
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timeistight
1556 posts
May 01, 2014
3:41 PM
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Actually, the Musicmaster had 2 6V6 tubes in the power section:
It had a solid state rectifier so there's no 5Y3.
An unusual feature of this amp is the phase inverter. It's based on a transformer instead of the usual tube.
Last Edited by timeistight on May 01, 2014 3:42 PM
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NiteCrawler .
292 posts
May 01, 2014
3:47 PM
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I have a 74 SF princeton 12" baffle and the tube line up is 2 6V6,s 2 ax 7,s and a 5U4 rectifier so I believe even tho they,re both 12 watts i believe they,re different animals altho i have not tried a MM.I believe BN/Goose talked about one of these yrs back on the weber harp board.But for $250. I,m sure they,re worth checking out and if you did the test run Mark I,m sure you have the ear for it.
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HawkeyeKane
2495 posts
May 01, 2014
4:33 PM
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Two major differences between the SFP and the MMB...solid state rectifier, and a transformer for the phase inverter on the MM as opposed to tubes.
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Hawkeye Kane - Hipbone Sam
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Barley Nectar
371 posts
May 01, 2014
6:18 PM
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Yep, had one. It was a chopped head with the 6V6's as opposed to the later 6AQ5's. MMB is not even close to Princeton. I did a cap job on mine and tried it with several speakers. Didn't care for it. Then went with a grid leak bias setup and switchable bypass cap. Still didn't care for it. The thing just never had any balls. Sold it for $175 to a guitar guy who loves it. It was a cute little head though.
Just goes to show ya, there is an amp for every man...BN
Last Edited by Barley Nectar on May 01, 2014 6:20 PM
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rockmonkeyguitars
68 posts
May 02, 2014
9:21 AM
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I've never used the amp in question but the schematic suggests that it has very little in common with a Princeton. The tone stack is different, the rectifier is different, and the phase inverter is differentiate. It may be a great harp amp, but it's got very little in common with a Princeton.
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MP
3191 posts
May 02, 2014
9:45 AM
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Was Franken amp, Hence different brain, 250 price tag. and Princeton tube chart and crooked screw assembly on bent chassis. How it fit in there I don't know.
Was Realllllly wrong.
see yah.
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Affordable Reed Replacement
Marks Harmonica Tune-up
Click user name MP for contact info
Last Edited by MP on May 02, 2014 9:48 AM
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chromaticblues
1568 posts
May 02, 2014
10:17 AM
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I had 1964 blackface with knobs and they had already changed to two 6v6's. I wish I still had that amp!
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