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Hoffman Amps Forum image Author Topic: Univox U45b clone - ecl86 in place of ecl82 ?  (Read 2597 times)

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Offline kagliostro

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Univox U45b clone - ecl86 in place of ecl82 ?
« on: March 15, 2013, 06:11:21 pm »
Is possible realize a clone of the Univox U45b using pcl86 tubes in place of ecl82 tubes, without any other mod than the use of a proper PT and OT ?

Thanks

K
The world is a nice place if there is health and there are friends

Offline DummyLoad

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Re: Univox U45b clone - ecl86 in place of ecl82 ?
« Reply #1 on: March 15, 2013, 07:16:39 pm »
Yes. Shouldn't be a problem.

--pete

Offline tubeswell

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Re: Univox U45b clone - ecl86 in place of ecl82 ?
« Reply #2 on: March 15, 2013, 09:03:21 pm »
The pentode in a PCL86 is 9W and the triode is 1/2W, and the heaters are 13V (the triode and pentode filaments within the tube are in series)
A bus stops at a bus station. A train stops at a train station. On my desk, I have a work station.

Offline darryl

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Re: Univox U45b clone - ecl86 in place of ecl82 ?
« Reply #3 on: March 15, 2013, 09:12:55 pm »
The U45b circuit has a tremolo speed control, but no depth control. I'd change R21 to a 500k potentiometer so the tremolo intensity can be adjusted.

Offline kagliostro

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Re: Univox U45b clone - ecl86 in place of ecl82 ?
« Reply #4 on: March 16, 2013, 02:15:04 am »
Many Thanks to All

K
The world is a nice place if there is health and there are friends

 


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