1960 Bassman

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1960 Bassman

Postby h8hoos on Thu Mar 09, 2017 4:35 pm

A couple of weeks back I acquired a March 1960 Bassman. Not much of the tweed left, been mostly recovered way back when in some sort of brown leatherette/vinyl. Also has a period correct 1958 Jensen Vibranto 15" speaker which doesn't appear to be original. It does appear that it was changed out way back when and lived most, if not all, of its life as a 15" Bassman. Faded grillcloth only shows 15". I have read a little bit about earlier Bassman amps with a 15.......but not as late as 1960. Any historians out there that might shed a little light on this?

Pics below.

I'm in Virginia. I am speaking with a couple of guys around the country concerning restoration, both amp and cabinet. One is Richard Goodsell of Goodsell Amps. Another is in California and another is in Maryland. I am asking for any recommendations you may have for this type of work.

Thank you.

ps......I also bought the 1960 Precision that went along with the amp.

http://s1320.photobucket.com/user/h8hoo ... g.html?o=5
http://s1320.photobucket.com/user/h8hoo ... g.html?o=0
http://s1320.photobucket.com/user/h8hoo ... g.html?o=4
http://s1320.photobucket.com/user/h8hoo ... g.html?o=7
Last edited by h8hoos on Fri Mar 10, 2017 3:30 pm, edited 6 times in total.
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Re: 1960 Bassman

Postby Unit_1 on Thu Mar 09, 2017 5:35 pm

Hit QUOTE above my post to see how I used the IMG tags to display this photobucket link. It has to be a direct link.

Image
Image
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Re: 1960 Bassman

Postby Dean Jr. on Thu Mar 09, 2017 6:11 pm

Subscribed. two things about that speaker. IF it is a ceramic, it is probably from 1968..not 1958. You can remove the bell cover to see that magnet. The codes on the frame of the speaker are informative, as well. And what impedance is the speaker? along with that, what is the number on that output transformer. The original OT would have been a 2 ohm tranny. If that Jensen is 8 ohms, that is quite a mismatch, imho.
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Re: 1960 Bassman

Postby h8hoos on Thu Mar 09, 2017 6:53 pm

Speaker date code is 220928.....so either 59 or 69 (I think). Gold label with red lettering. Will look at it closely tonight when I get home. My mistake on the '58.

I can't figure out how to post pictures.
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Re: 1960 Bassman

Postby Dean Jr. on Thu Mar 09, 2017 7:30 pm

h8hoos, that 220928 code is of interest in dating the speaker. The other codes on the speaker tell us what it is.
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Re: 1960 Bassman

Postby stratele52 on Fri Mar 10, 2017 9:16 am

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Re: 1960 Bassman

Postby h8hoos on Fri Mar 10, 2017 2:43 pm

Dean Jr. wrote:h8hoos, that 220928 code is of interest in dating the speaker. The other codes on the speaker tell us what it is.


Again....I haven't figured out the pic thing, but I did look closely at the speaker this morning. On the edge, and just a bit around from the 220 code, it says "MI 150" and then a gap of about 1/2" or so and it says "M1500,C8517 5". On the back of the cone it says "3015B11W6". Has 2 thumb screw type post connectors, only with red tip/end. Took dust cover off, no markings at all on the magnet.
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Re: 1960 Bassman

Postby h8hoos on Fri Mar 10, 2017 3:53 pm

h8hoos wrote:
Dean Jr. wrote:h8hoos, that 220928 code is of interest in dating the speaker. The other codes on the speaker tell us what it is.


Again....I haven't figured out the pic thing, but I did look closely at the speaker this morning. On the edge, and just a bit around from the 220 code, it says "MI 150" and then a gap of about 1/2" or so and it says "M1500,C8517 5". On the back of the cone it says "3015B11W6". Has 2 thumb screw type post connectors, only with red tip/end. Took dust cover off, no markings at all on the magnet.


I have now figured out the pic thing.....see below.

http://i1320.photobucket.com/albums/u53 ... vmrjl8.jpg
http://s1320.photobucket.com/user/h8hoo ... sort=3&o=1
http://s1320.photobucket.com/user/h8hoo ... sort=3&o=0
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Re: 1960 Bassman

Postby stratele52 on Fri Mar 10, 2017 5:05 pm

Please , finish the job.... :laff:

Image
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Re: 1960 Bassman

Postby Dean Jr. on Fri Mar 10, 2017 5:51 pm

Here is a chart that shows some of these speakers. The speaker you show us is a 70 watt, ceramic----
Syntox-6 is a Jensen designation for ceramic--- magnet speaker. Post #21 in this thread has a chart showing the particulars. There are only two Alnico speakers on that chart. I feel certain that the speaker you have is from 1969. IF Jensen had been building these higher power speakers in the late '50's-early '60's, imho Leo Fender would have used them.

http://i1184.photobucket.com/albums/z32 ... CN2084.jpg
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Re: 1960 Bassman

Postby stratele52 on Fri Mar 10, 2017 8:18 pm

Dean Jr. wrote:Here is a chart that shows some of these speakers. The speaker you show us is a 70 watt, ceramic----
Syntox-6 is a Jensen designation for ceramic--- magnet speaker. Post #21 in this thread has a chart showing the particulars. There are only two Alnico speakers on that chart. I feel certain that the speaker you have is from 1969. IF Jensen had been building these higher power speakers in the late '50's-early '60's, imho Leo Fender would have used them.

http://i1184.photobucket.com/albums/z32 ... CN2084.jpg


Just one more clic my friend and job was done

Image
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Re: 1960 Bassman

Postby Dean Jr. on Fri Mar 10, 2017 8:37 pm

Image

LOL....I should have noticed that it was a photobucket image. I am not the most computer tech savvy person around. :cheers:
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Re: 1960 Bassman

Postby stratele52 on Fri Mar 10, 2017 9:16 pm

Just click on IMG window to copy ( photobucket ) where is you photo and write it on forum window

Image
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Re: 1960 Bassman

Postby Dean Jr. on Fri Mar 10, 2017 9:56 pm

The option just below that one worked, too. :jam:
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Re: 1960 Bassman

Postby h8hoos on Sat Mar 11, 2017 1:53 pm

Speaker tested at 8 ohms. I was able to plug the speaker into another amp and it works perfectly. Still deciding on what direction to go with the electrical side of it.
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