5F1 Transformers-Just Pondering the Possibilities [Archive]

woodbutcher

June 14th, 2012, 08:27 PM

Hi,

I've never built an amp before, but that won't keep me from trying.

Actually got to here when I was looking for info to repair my '64 Fender Bassman head (Black face with AA864). I've had so much fun checking out all the builds posted here and must of got jealous!

I figured that Dave's deal on the Boothill 5F1 kit wouldn't break the bank. Might even learn something if I'm not careful. It's in the mail.

I almost hate to even bring this subject up. Seems like I've read everything I could find here and still have more questions. Or at least I might need someone to smack me if I'm getting sideways on this.

So I've looked at most of the typical vendors and see this range of output for PT's:

550V 100mA
600V 100mA
630V 100mA
650V 70mA

Granted, there may be more options but this seems to be enough to choose from.

So will the 550V's give this amp a cleaner tone to a higher volume before the dirt kicks in? Does the lower voltage also mean it will have a lower maximum volume?

Conversely, will the 650V's do have the opposite effect?

If that is so, then if you might decide to pick one of the other two values, depending if you wanted to lean towards cleaner with the 600 or dirtier with the 630? At that point I would suspect that there are other things to tweak the tone from there.

Geez, did I just commit myself to another 5 or 6 builds to confirm my ideas?

I'm actually not going to lose too much sleep over this. Just hoping to learn something from building and have a little fun while I'm at it. I am liking muchxs' philosophy on these dirty little buggers.

On the other end of the circuit, has anyone tried the TF10348UL output transformer from Triode?

Thanks for letting me ramble,

Mark

hackworth1

June 14th, 2012, 08:33 PM

I use this American-made one, mostly:

www.tubesandmore.com

Transformer - Fender® Replacement, Power, 325-0-325 V, 70 mA

SKU: P-TF22772

Replacement for Princeton, Princeton Reverb, Champ, Vibro-Champ, and Tweed Deluxe. Equivalent to #125P1B & #022772.

Specifications
Primary 117 V, 60 Hz
Secondary 325-0-325 V, 375 VDC @ 70 mA(DC)
Filament Winding 6.3 V, 2 A
Rectifier Filament 5 V, 2 A
Mounting Centers 2" x 2.5"
Mounting Type Horizontal
Weight


	Telecaster Guitar Forum > The DIY Channel > Shock Brother's DIY Amps > 5F1 Transformers-Just Pondering the Possibilities PDA 5F1 Transformers-Just Pondering the Possibilities woodbutcher June 14th, 2012, 08:27 PM Hi, I've never built an amp before, but that won't keep me from trying. Actually got to here when I was looking for info to repair my '64 Fender Bassman head (Black face with AA864). I've had so much fun checking out all the builds posted here and must of got jealous! I figured that Dave's deal on the Boothill 5F1 kit wouldn't break the bank. Might even learn something if I'm not careful. It's in the mail. I almost hate to even bring this subject up. Seems like I've read everything I could find here and still have more questions. Or at least I might need someone to smack me if I'm getting sideways on this. So I've looked at most of the typical vendors and see this range of output for PT's: 550V 100mA 600V 100mA 630V 100mA 650V 70mA Granted, there may be more options but this seems to be enough to choose from. So will the 550V's give this amp a cleaner tone to a higher volume before the dirt kicks in? Does the lower voltage also mean it will have a lower maximum volume? Conversely, will the 650V's do have the opposite effect? If that is so, then if you might decide to pick one of the other two values, depending if you wanted to lean towards cleaner with the 600 or dirtier with the 630? At that point I would suspect that there are other things to tweak the tone from there. Geez, did I just commit myself to another 5 or 6 builds to confirm my ideas? I'm actually not going to lose too much sleep over this. Just hoping to learn something from building and have a little fun while I'm at it. I am liking muchxs' philosophy on these dirty little buggers. On the other end of the circuit, has anyone tried the TF10348UL output transformer from Triode? Thanks for letting me ramble, Mark hackworth1 June 14th, 2012, 08:33 PM I use this American-made one, mostly: www.tubesandmore.com Transformer - Fender® Replacement, Power, 325-0-325 V, 70 mA SKU: P-TF22772 Replacement for Princeton, Princeton Reverb, Champ, Vibro-Champ, and Tweed Deluxe. Equivalent to #125P1B & #022772. Specifications Primary 117 V, 60 Hz Secondary 325-0-325 V, 375 VDC @ 70 mA(DC) Filament Winding 6.3 V, 2 A Rectifier Filament 5 V, 2 A Mounting Centers 2" x 2.5" Mounting Type Horizontal Weight hackworth1 June 14th, 2012, 08:36 PM This Weber Unit has more power. www.taweber.com W022772 125P1B Click For Specs $42.00 6 to 15 Power Transformer for Tweed Champ, Champ, Vibro Champ, and Princeton. 120 and 125 Volt input. t-luxe June 14th, 2012, 08:45 PM Generally, higher voltage=more headroom; lower voltage=less headroom. Personally, I like the ClassicTone trannys.