output transformer upgrade ?

[StrummersOfThunder]

Hi all
Anyone have experience in OT upgrades?
I know there are all sorts of variations but I was reading about dropping a bigger OT into fender amps.
In my 6g9b tremolux the output tranny os rated at 4ohm so i was thinking of getting a replacement hammomd from mouser so that it had 4/8/16 taps.
Then I thought is there a role for beefing things up?
I have seen places mention using a bassman OT.
What ,if any, difference would this make? (except for gravitational pull on near objects/planets)
Thanks

[griff]

I put a Hammond in my Jet City and they really are great OT's for the price. USA made too. I say go for it

[Cdog]

Bigger OT can increase bass response and headroom. Needs to be matched to the impedance of the output valves on the primary

[MikeC]

If you need 4/8/16 speaker taps then you have no choice. But "bigger" OTs don't necessarily make the amp sound better. Different maybe (as Cdog mentioned) but the "special" thing about the tone of your amp might be a slightly underrated OT...

[Jay]

If you need 4/8/16 speaker taps then you have no choice. But "bigger" OTs don't necessarily make the amp sound better. Different maybe (as Cdog mentioned) but the "special" thing about the tone of your amp might be a slightly underrated OT...

In other words, smaller may give more satisfaction...

[StrummersOfThunder]

Bigger OT can increase bass response and headroom. Needs to be matched to the impedance of the output valves on the primary

im not sure id know how to do that.

[MikeC]

Bigger OT can increase bass response and headroom. Needs to be matched to the impedance of the output valves on the primary

im not sure id know how to do that.

2 x 6L6?

[MikeC]

Looks like a Classictone 40-18006 is the equivalent of your 6G9B OT (Fender 125A6A) except it has 4/8/16 ohm output impedances. The Primary impedance is 4 Kohm There may be a Hammond equivalent as well. I can get these and install for you so sing out if you want a price.

[sizzlingbadger]

You will need a primary of ~4000ohms https://www.hammfg.com/part/1760J?referer=1399

[MikeC]

You will need a primary of ~4000ohms https://www.hammfg.com/part/1760J?referer=1399

Yep, that's the one!

[StrummersOfThunder]

Awesome thanks !

[StrummersOfThunder]

Looks like a Classictone 40-18006 is the equivalent of your 6G9B OT (Fender 125A6A) except it has 4/8/16 ohm output impedances. The Primary impedance is 4 Kohm There may be a Hammond equivalent as well. I can get these and install for you so sing out if you want a price.

Thanks very much yes 2x6L6
Is there any difference between classic tone and hammond ?

[StrummersOfThunder]

You will need a primary of ~4000ohms https://www.hammfg.com/part/1760J?referer=1399

Yes that's the one I came up with.
I guess the two outstanding questions are.:
1. Any difference between brands
2. Is it worth beefing up the thing while I'm at it

I guess 2. Comes down to taste a fair bit..
For surf guitar we are after big bottom end and plenty of headroom

[MikeC]

Looks like a Classictone 40-18006 is the equivalent of your 6G9B OT (Fender 125A6A) except it has 4/8/16 ohm output impedances. The Primary impedance is 4 Kohm There may be a Hammond equivalent as well. I can get these and install for you so sing out if you want a price.

Thanks very much yes 2x6L6
Is there any difference between classic tone and hammond ?

They're both good. I can often get Hammond's cheaper and I use them alot.

[MikeC]

You will need a primary of ~4000ohms https://www.hammfg.com/part/1760J?referer=1399

Yes that's the one I came up with.
I guess the two outstanding questions are.:
1. Any difference between brands
2. Is it worth beefing up the thing while I'm at it

I guess 2. Comes down to taste a fair bit..
For surf guitar we are after big bottom end and plenty of headroom

1/. See my previous answer.
2/. I think your amp is renowned for a "big" clean tone so the Fender OT is already quite beefy. The stated Classic Tone & Hammond are the equivalent of the Fender OT so I'd stick with either of those.