New to me Pedersen W-15

[diamondsouled]

Just picked up this Pedersen W-15 Williamson amp.

Pretty little thing she is

Will probably try running it with my Electrohome PA-100 on the other side until I find a second one of either, lol. :yes:

Cheers

Lar

 

[stanbp64]

That is purty

 

[jaymanaa]

Wow, a 40:1 damping factor. Any chance for a schematic?:scratch2:

 

[bricktop]

Pretty impressive bandwidth specs. Must be triode-strapping them KT66s, like the original Williamson intended iirc.

 

[Cactus Bob]

Cool looking unit, looks heavy duty!

 

[diamondsouled]

Wow, a 40:1 damping factor. Any chance for a schematic?:scratch2:

Haven't been able to dig up a schematic yet but will keep surfing :yes:

The specs are quite close to the PA-100 which is a true Williamson KT66 amp as well. The driver tube set up is a bit different although they both do use a 6SN7.

Cheers

Lar

 

[Tom Bavis]

Not listed in Sams index... but the Williamson circuit is pretty generic... could probably use a Heathkit schematic, just see what values are different.

 

[diamondsouled]

Not listed in Sams index... but the Williamson circuit is pretty generic... could probably use a Heathkit schematic, just see what values are different.

He, he, You were next on my list to contact Tom.

Apparently the W-30 does have a Sams and it is similar to the W-15 in some ways.

Cheers

Lar

 

[tcdriver]

Nice looking amplifier that traveled all the way to Canada. Lafayette, California is just over the hill from the Valley of Heart's Delight. I have only seen a few of Pedersen Electronics products in this area. Petersen did make another amplifier (W-30), integrated amplifier (PCP-20) and two nearly identical preamplifiers (PRT-1B, PRT-1LC). I do not know if they ever made a tuner. An acquaintance of mine has a pair of what look to be W-30 amplifiers. I never heard them though. How does it sound?

Edit May 22, 2017: Yes, they did make at least one tuner, the Model AFM-2A aka Paragon AM-FM Tuner.

 

[diamondsouled]

Nice looking amplifier that traveled all the way to Canada. Lafayette, California is just over the hill from the Valley of Heavenly Delights. I have only seen a few of Pedersen Electronics products in this area. Petersen did make another amplifier (W-30), integrated amplifier (PCP-20) and two nearly identical preamplifiers (PRT-1B, PRT-1LC). I do not know if they ever made a tuner. An acquaintance of mine has a pair of what look to be W-30 amplifiers. I never heard them though. How does it sound?

They also made a W-50 that ran 6550s. Here's the schematic.

Haven't received it yet

Cheers

Lar

 

[Tom Bavis]

I found The Sams folder for the Pederson W-30 - I'll post it on my 50's page soon.

 

[diamondsouled]

I found The Sams folder for the Pederson W-30 - I'll post it on my 50's page soon.

Thanks Tom! Appreciated :yes:

Cheers

Lar

 

[jaymanaa]

I wonder what the would sound like on Bozak 302As?:scratch2: They like a little more damping factor than most tube rigs offer.

 

[radioactive]

nice amp lar,one of many on my rare to get list.im glad i didnt see it otherwise there may of been a bidding war lol.

 

[radioactive]

. I do not know if they ever made a tuner.

yep they did tx.heres some info on pedersen http://www.hifilit.com/hifilit/Pedersen/Pedersen.htm

theres also a w 20 amplifier.

 

[sheltie dave]

Hey Larry, I put a snipe on that one...but someone bid over the snipe so it never made it.

Good show! I'm glad it made it into your hands, knowing the love and appreciation you'll give it. :thmbsp:

 

[radioactive]

Hey Larry, I put a snipe on that one...but someone bid over the snipe so it never made it.

Good show! I'm glad it made it into your hands, knowing the love and appreciation you'll give it. :thmbsp:

you did did you?:sigh: well im glad it mad it to another ak member also :yes:

 

[bolly]

very cool Lar!!

 

[tcdriver]

Here is my Pedersen W-15 in my MONO music system.



Close up photo:

yep they did tx.heres some info on pedersen http://www.hifilit.com/hifilit/Pedersen/Pedersen.htm

theres also a w 20 amplifier.

radioactive,

Thank you for the link to the specification sheet to the Model W-15.

 

[tcdriver]

I have done a little digging. It seems that Pedersen Electronics was the sub-contractor who built the electronics for the original Ampex 200A tape recorders.


Rudy Pedersen:
http://www.ampex.com/early-history2.html