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FDP Forum / Miscellaneous and Non-Fender Topics / It’s Headed My Way

Previous 20 Messages  
ninworks
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Middle Tennessee

Guitar Slave
Sep 4th, 2019 07:40 AM   Edit   Profile  

...Ramble on.... Sorry. I couldn't resist.

Leftee
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VA

Sep 4th, 2019 08:33 AM   Edit   Profile  

Nor should you resist.

5Strats
Contributing Member
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Edmond/OKC

GospelBilly!
Sep 4th, 2019 09:25 AM   Edit   Profile  

I salute you because you're about to rock that amp! FIRE! (:oD

Leftee
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VA

Sep 4th, 2019 10:45 AM   Edit   Profile  

If FedEx shows.

They suck around these parts. I much-prefer UPS.

Leftee
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VA

Sep 4th, 2019 11:36 AM   Edit   Profile  

It's here and I gave it an initial run to make sure all is well.

All is very well. I'll get to spend some loud time with this tonight while the ladies are at orchestra rehearsal.

5Strats
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Edmond/OKC

GospelBilly!
Sep 4th, 2019 01:56 PM   Edit   Profile  

Yes, he scores!

reverend mikey
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N of I-90, E of I-29

You're old. Then vintage. Then good!
Sep 4th, 2019 04:36 PM   Edit   Profile  

Does it look just like the ones in Peegoo's profile? Either way, we need pics!

(Is it a tube unit?)



Peegoo
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If irritation occurs

discontinue use.
Sep 4th, 2019 04:48 PM   Edit   Profile  

It will be the black version with 6V6 tubes...unless the previous owner swapped in other power tubes.

You can stick 6L6s or EL34s in there if you like. It does change the tone and volume. You can also go from four power tubes to two in order to drop the power and decrease clean headroom. John Kasha (designer) spec'd these amps to be fairly bombproof.

(This message was last edited by Peegoo at 06:56 PM, Sep 4th, 2019)

Leftee
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VA

Sep 4th, 2019 05:13 PM   Edit   Profile  

It is as Goo states.

I didn't know you can swap output tubes. It has the stock 6V6s in it.

It does switch from 30w to 18w.

Leftee
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VA

Sep 4th, 2019 05:32 PM   Edit   Profile  

I found a neato tube-swap chart for these authored by Mr. Kasha.

Leftee
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VA

Sep 4th, 2019 07:08 PM   Edit   Profile  

What tubes came in the USA models?

Peegoo
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If irritation occurs

discontinue use.
Sep 4th, 2019 07:27 PM   Edit   Profile  

JJs.

Leftee
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VA

Sep 4th, 2019 07:43 PM   Edit   Profile  

Same tube complement?

Peegoo
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If irritation occurs

discontinue use.
Sep 4th, 2019 08:00 PM   Edit   Profile  

Yes. The difference between the US and import models is the imports have a PCB and foreign-sourced components.

Peegoo
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If irritation occurs

discontinue use.
Sep 5th, 2019 06:48 AM   Edit   Profile  

"The USA models are few and far between."

The Tone Americana production run of Evil Robots was fairly small. Kasha still makes them, but the name of the amp is now Columbia.

Leftee
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VA

Sep 5th, 2019 08:19 AM   Edit   Profile  

I swapped some tubes around last night. In the preamp I like the stock configuration. 12AX7/12AX7/12AU7/12AU7/12AX7.

I installed a pair of EL34s in place of the quad of 6V6s (cheap Chinese 6V6s at that). I liked those better. I have a quad of JJ 6V6s I suspect will be the winner. They perform a bit more like a 6L6 any ways.

Peegoo
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If irritation occurs

discontinue use.
Sep 5th, 2019 12:51 PM   Edit   Profile  

That is true about the JJ 6V6.

I have a pair of 6L6s in my 18-watt version and tried all the tube options in the 30-watter, but I went back to the 6V6s because they sounded best.

One thing to consider doing is install a 12vDC computer fan in the bottom of the cabinet blowing upward at the power tubes. You can run it off the 6vDC heater supply, and it will run at half speed and be super quiet. Be sure to get one that's spec'd as "double ball bearing," because many have bronze bushings and they wear out much faster and become noisy over time.

I suggest this because the dinky little stock fan in the amp does not really move enough air across the tubes and the chassis gets quite warm in normal operation. John Kasha told me the steel chassis is designed to act as a heat sink so it should be okay.

Despite that, heat is the number one killer of electronic components so I did that mod to my 30-watt version and it made a noticeable difference in the temperature of the chassis.

The 18 didn't come with a cooling fan, so I installed one and it runs a whole lot cooler.

Leftee
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VA

Sep 5th, 2019 01:24 PM   Edit   Profile  

Thanks!

Leftee
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VA

Sep 7th, 2019 07:00 PM   Edit   Profile  

The JJ 6V6s are just what this amp wanted. 😎

Peegoo
Contributing Member
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If irritation occurs

discontinue use.
Sep 7th, 2019 08:26 PM   Edit   Profile  

Yep. My experience too.

Previous 20 Messages  

FDP Forum / Miscellaneous and Non-Fender Topics / It’s Headed My Way




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