Fender '59 Bassman (reissue)

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Re: Fender '59 Bassman (reissue)

Postby slickcat » Mon Jun 30, 2008 9:48 pm

If I were young and strong again.......I would get the Bassman. :D
Its a great sounding LOUD and tonefull amp. You can kick serious butt with that amp.
But for me.........something lite yet tonefull like a mini bassman is what I like.....thats my 5e3 Tweed Deluxe. Good enough for Niel Young...good enough for me! 8)
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Re: Fender '59 Bassman (reissue)

Postby jbone1 » Sun Jul 06, 2008 6:06 pm

i just got a '59 bassman replica, courtesy steve clark at sligo amps. this thing is awesome to put it mildly! nice mix of speakers for good low and high end breakup and all point to point wired, truly a thing of beauty and function! i stuck a 12au7 in the third slot to cut the gain some and this works well on smaller amps i've used. i wonder though if any of you harp guys who use a bassman can shed any light on getting some more gain cut? there are of course 3 12a-type sockets and the amp cam with 3 12ax7's. is there a combination of lesser value tubes- 12at7 and 12au7- that will give me less gain and still wondrous volume? is there a particular rectifier tube that will improve this amp's performance for harp? i've heard a 5y3 is a good one but since i have no idea, i'd rather get y'all's counsel before swapping stuff around too much. i also wonder about using a volume pedal in line to keep volumes right during quiet times and then bumping up for solo times.

any words of wisdom deeply appreciated!!

jb
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Re: Fender '59 Bassman (reissue)

Postby ricochet » Mon Jul 07, 2008 6:19 pm

The original Bassman used a 12AY7 in the first position. Interestingly, a new commercial 12AY7 has just been introduced, due to popular demand.

I don't recommend swapping rectumfriers around. Some who want increased distortion from "voltage sag" substitute tubes rated for lower current with greater internal resistance, like a 5Y3GT, but tube life will be very short if you do this. If you really feel you need this sag, keep a 5U4 or 5AU4 (the original) type and add resistance between the rectifier filament and first filter capacitor. That will extend tube life and decrease hum as well.
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Re: Fender '59 Bassman (reissue)

Postby bottleneck » Mon Jul 07, 2008 9:01 pm

jbone1,congatulations! i've been playing a RI bassman for years and still love it.

http://www.myspace.com/shakeylyman
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Re: Fender '59 Bassman (reissue)

Postby jbone1 » Mon Jul 07, 2008 10:06 pm

i have a 12ay7 from back in the day, does that not actually bump- the gain up? i admit to severe ignorance when it comes to amp electronics.....
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Re: Fender '59 Bassman (reissue)

Postby slickcat » Mon Jul 07, 2008 11:29 pm

Here is a tube guide for pre-amp tubes.

http://kcanostubes.com/content/newslett ... rticleID=4
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Re: Fender '59 Bassman (reissue)

Postby ricochet » Tue Jul 08, 2008 2:36 am

The 12AY7 has an amplification factor of 40, vs. 100 for a 12AX7. Actual gain in circuit will be less than those figures, but more or less proportional.
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Re: Fender '59 Bassman (reissue)

Postby jbone1 » Tue Jul 08, 2008 11:01 am

that guide should keep me straight. thanks cat and rico!
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