[Amps] Dentron 160-10L 10 meter issue

Fri Sep 7 18:12:48 EDT 2012

I thought you said yours had the same transformer?

Carl

----- Original Message ----- 
From: Tim Kass
To: amps at contesting.com ; Carl
Sent: Friday, September 07, 2012 4:56 PM
Subject: Re: [Amps] Dentron 160-10L 10 meter issue

Well, the 160-10L doesnt have a high/low voltage position...has SSB/CW which 
only changes the speed of the fan...voltage remains the same..thats the 
design..in the Clipperton L - newer redesign of this amp, it has a hi-lo 
voltage switching in different taps on the primary I think.  That switch was 
bad so I replaced it with a on-off HD toggle, rather than the cheap-o 3 
position switch..so fan in high speed mode 100% of the time..but I changed 
that too with a 6 inch fan and put a resistor on it to slow it down a little 
as it was too damn loud.. hi hi   So far it hardly shows color..so hoping 
the tubes last forever.
Tim

--- On Fri, 9/7/12, Carl <km1h at jeremy.mv.com> wrote:

From: Carl <km1h at jeremy.mv.com>
Subject: Re: [Amps] Dentron 160-10L 10 meter issue
To: "Tim Kass" <k8wbl at yahoo.com>, amps at contesting.com
Date: Friday, September 7, 2012, 2:32 PM

2100 is about right in standby on CW while 2600-2700 is fine on SSB.

I hope its just out of tolerance metering resistors and not the filter caps 
loading it down with high leakage.

Carl
KM1H

----- Original Message ----- 
From: Tim Kass
To: Carl ; amps at contesting.com ; Colin Lamb
Sent: Friday, September 07, 2012 11:53 AM
Subject: Re: [Amps] Dentron 160-10L 10 meter issue

Thanks Carl, well, only driving it with about 75 watts, wont go over that 
with my 746PRO to keep it happy...and not trying to sqeeze every last watt 
out either, like some folks.. ;)   When I rebuilt the power supply, could 
have redone that voltage doubler circuit, since it uses the same transformer 
at the Clipperton L, but didnt want to push the 572B's either, 2100 volts at 
idle now. So will just be careful and tune very slowly on the Tune knob, 
hate to write in tune positions but maybe stick some colorful tape on the 
exact loading spots..hi hi ...geez..its a junk style amplifier anyway and 
I've already cut up and modified it so much..don't think I can hurt the 
value of this amp any more..hi hi

73, Tim K8WBL

--- On Fri, 9/7/12, Colin Lamb <k7fm at teleport.com> wrote:

From: Colin Lamb <k7fm at teleport.com>
Subject: Re: [Amps] Dentron 160-10L 10 meter issue
To: "Carl" <km1h at jeremy.mv.com>, "Tim Kass" <k8wbl at yahoo.com>, 
amps at contesting.com
Date: Friday, September 7, 2012, 11:31 AM

"Id start there and in the CW position and tune for maximum smoke."

Careful, Carl, there are a lot of hams out there who take every word as 
gospel and will try to do that.

73,  Colin

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