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Bell & Howell 110V mains T - 240V options?
Bell & Howell 110V mains T - 240V options?
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Old 5th December 2018, 10:41 AM   #11
avtech23 is offline avtech23  Australia
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Bell & Howell 110V mains T - 240V options?
For info, the specs of that transformer are:

Primary 240V @ 165mA
Secondary:
660Vct @ 138mA
6.3v @ 3A
5v @ 3A

==========
Heater currents:
6V6GT = 450mA
6SL7GT = 300mA
6J7 (or 6SJ7) = 300mA

5Y3GT = 2A
==========

So it seems it should be fine running a push-pull 6V6 pair with 6SL7GT and 6J7 (Or 6SJ7) preamp.
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Old 5th December 2018, 11:41 PM   #12
BenHoper is offline BenHoper  United Kingdom
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@ avtech23 - fire away, useful info for me too. I've been looking at the 290BEX as well.
also
The ClassicTone 40-18041 Power, 40W, 120V 022723, 125P26A. 041316
seems to be a size fit for mine. From the '65 Deluxe Reverb Reissue. More power than I need but hey ....
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Old 6th December 2018, 12:01 AM   #13
avtech23 is offline avtech23  Australia
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Bell & Howell 110V mains T - 240V options?
Can never have too much power!

I wonder if you'd be able to give me the dimensions for the amp chassis? - I won't be able to pick mine up for another week but want to start looking at designing it's new home in the meantime.
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Old 6th December 2018, 10:18 PM   #14
BenHoper is offline BenHoper  United Kingdom
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I've worked out my unit is probably a 621 so not quite the same as yours.
EF37A, ECC35, 5Z4, 3 x 6V6

110 w; 52mm h (145mm inc tx); 290mm l;
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Old 7th December 2018, 01:58 AM   #15
avtech23 is offline avtech23  Australia
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Bell & Howell 110V mains T - 240V options?
Thanks for the dimensions. The chassis appear to be similar between them (looking at photos) so that gives me a good start.
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The ever growing project list.. :NAP140 Clone, NAD 3020i & 3225PE, JLH1969, TDA2050, Fender 5F2A Princeton, NE5532 Preamp | : VSQC Phunk Style, Retro 50W | : Apex AX-14 | SHPA | TGM-10 | TDA7265 (Last in line)...maybe
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