1951 / 1952 Danelectro Twin Twelve / Silvertone 1346

Gibson, Valco, Gretsch, and more

1951 / 1952 Danelectro Twin Twelve / Silvertone 1346

Postby danelectrotwintwelve on Sun Aug 26, 2012 6:29 pm

Dear All,

I have just bought an old Danelectro Twin Twelve Series C:

http://www.ebay.com/itm/Danelectro-Twin ... item337a1a 7f31

I have trawled the web and found over the years a couple of other owners asking for schematics and information, and there clearly is no schematic available. I have contacted these posters and those who have posted pictures of their amps on other sites all to no avail.

I would like to ask if there are any owners out there who would be willing to take some photos of the guts. My amp is with a tech and he said that it has been messed around with enough to make it a pain to be sure of getting right.

I am sure that the Danelectro-branded Twin Twelve is the same as the Silvertone-branded 1346, so owners of either of these amps I would be very grateful if you could contact me at danelectrotwintwelve@hotmail.co.uk or a PM through the forum.

FWIW my amp is actually from late 1951 and has field coil 12" speakers.

Thanks in advance to anyone who can help. Just to say that we can of course find the readily available later Twin Twelve schematics (e.g. Silvertone 1396), but this amp is not the same. So far we think the 2x6L6 Silvertone 1344 scematic which is available (also 1951-ish) is the closest we can get...so ideally we now need photos of the innards.
danelectrotwintwelve
Peasant
 
Posts: 3
Joined: Fri Aug 24, 2012 11:08 am

Re: 1951 / 1952 Danelectro Twin Twelve / Silvertone 1346

Postby stratele52 on Tue Aug 28, 2012 9:04 pm

I have schematic of Silvertone with field coil speaker . There's no model number or name. The title of this schematic is ;
2 X 6L6 tremolo amp ( old ) Silvertone
There is a chassis number on the schematic ; 185.706

Tubes are ; 2 X 6L6 , 6SN7 , 6J7, and 7Q7
stratele52
Squire
 
Posts: 889
Joined: Sat Aug 21, 2010 9:35 am
Location: Québec province, Canada

Re: 1951 / 1952 Danelectro Twin Twelve / Silvertone 1346

Postby stratele52 on Tue Aug 28, 2012 9:11 pm

I just look at your e-bay link.
Your amp have those tubes ;
tube configuration left to right is 6SJ7, 6Y6, 6Y6, 5U4, 6L6, 6L6, 6SN7, 6SJ7.

My schematic is not helpful for you . Sorry.

Teh only way could be to draw the schematic from the amp , hours of fun . I do it a lot of time with old stuff or home made amp.
stratele52
Squire
 
Posts: 889
Joined: Sat Aug 21, 2010 9:35 am
Location: Québec province, Canada

Re: 1951 / 1952 Danelectro Twin Twelve / Silvertone 1346

Postby menschmaschine on Thu Aug 30, 2012 4:32 pm

I completely rebuilt (electrically) a 1951 Silvertone 1344 last year. So if you have any specific questions, I may be able to help. I'm not an amp tech, I only dabble in electronics repair, so all the research I had to do over the 4 months of spare time it took me let me get to know that amp REAL well. When I first got the amp, I ventured to turn it on (despite the two-prong power chord) and play through it. It sounded like an out-of-range AM station. When I completed it and fired it up, it sounded WONDERFUL!... great tone... clean, chimey, surprisingly low hum... probably the least hum of any tube amp I've played through. That experience gave me a lot of respect for early Danelectro amps and I'm always on the look out for a good deal on another one in need of repair since that one was for my brother :-(
User avatar
menschmaschine
Peasant
 
Posts: 43
Joined: Mon Jun 20, 2011 3:31 pm

Re: 1951 / 1952 Danelectro Twin Twelve / Silvertone 1346

Postby danelectrotwintwelve on Fri Aug 31, 2012 6:57 am

Thanks to all for the replies. In the meantime (it took a while for my 1st post to appear, as a newbie), my tech has it fixed and says it sounds fabulous - much better than the other Danos he has done for me. Also that it is very loud - he talks of 30-40W.

It turns out the Danelectro Twin Twelve amp I have is from the year 1951/1952. It is the same as the Silvertone 1346 from that year, even through it is was almost double the price! In 1951/1952 it was a 2 x 6L6 amp with a further 2 x 6Y6 providing power to the 2x12" field coil speakers. The tremolo is driven by changing the current to the speakers.

In probably mid-1952 both amps became very different 4x6L6 animals, and there are a handful of such examples on the web.

When the amp arrived it had bad caps, resistors and the wrong replacement PT. The tech replaced these items and it is now working perfectly.
The tube lineup is mine is: 6SJ7, 6Y6G, 6Y6G, 5U4G, 6L6G, 6L6G, 6SN7, 6SJ7. Note to those who may read this post in the future, if your Dano TT or 1346 is of the 4x6L6 flavour, then the lineup will be very different!

Regarding the 1344, there were 4 versions of this amp. I have the 3rd version (chassis 185.800) with permanent magnet speaker and 2x6L6 made at the end of 1952, a short while after the change from field coil. If yours is a 1951 then it is probably the 2x6V6 version with the 6Y6 tube also doing the tremolo thang in the same way as on my Twin Twelve.

I was nerdy enough to look at the shipping weights of both the 1344 and the 1346 in the Sears catalogs. In the 1952 catalog they are heavier than in the 1951 catalog (significantly so for the 1346, 36lbs --> 50lbs). This is due to the radical change in amp design of both amps and their requirement for correspondingly larger PTs (in the 1344 the amp went from 2x6V6 --> 2x6L6 and in the 1346, 2x6L6 --> 4x6L6).
Last edited by danelectrotwintwelve on Fri Aug 31, 2012 12:30 pm, edited 1 time in total.
danelectrotwintwelve
Peasant
 
Posts: 3
Joined: Fri Aug 24, 2012 11:08 am

Re: 1951 / 1952 Danelectro Twin Twelve / Silvertone 1346

Postby stratele52 on Fri Aug 31, 2012 8:42 am

Good news ,

So your amp do=id not have fied coil magnet as you write in first in the post ?

( " FWIW my amp is actually from late 1951 and has field coil 12" speakers." )

Enjoy your amp
stratele52
Squire
 
Posts: 889
Joined: Sat Aug 21, 2010 9:35 am
Location: Québec province, Canada

Re: 1951 / 1952 Danelectro Twin Twelve / Silvertone 1346

Postby danelectrotwintwelve on Fri Aug 31, 2012 11:23 am

Sorry, forgive my sketchy English:

My 1951/1952 Dano house brand Twin Twelve has two field coil speakers and uses them to make the tremolo, one 6Y6 for each speaker.

My 1952/1953 Dano Silvertone 1344 does not use a field coil speaker and hence no 6Y6 and a completely different source of tremolo.

The year difference spans the time when Dano made the move from field coil speakers to PM speakers (at least in these amps), as well as a complete change of circuit in both amps, but all within the same housing. Also in the same period the 12AX7 started to be introduced in the preamp in place of the 6/12SJ7.
danelectrotwintwelve
Peasant
 
Posts: 3
Joined: Fri Aug 24, 2012 11:08 am


Return to Miscellaneous American Amplifiers

Who is online

Users browsing this forum: No registered users and 3 guests