[TechAssist] Re: 2SD2539 and 2SD2539LBMA1(Panasonic)
- From: <tvservice@xxxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Tue, 30 Dec 2003 14:18:05 -0600
According to ECG and NTE cross references all versions of 2SD2539,lb,ma have
an internal damper diode.
When in doubt use a HOT with internal damper diode, it will work in most
instances I have encountered.
Robert
tvservice@xxxxxxxxxxxxx
H & H Electronics Inc
Dallas, TX
----- Original Message -----
From: <MDileo0000@xxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Tuesday, December 30, 2003 1:56 PM
Subject: [TechAssist] 2SD2539 and 2SD2539LBMA1(Panasonic)
> I hope someone can clear this up. My factory schematic for a Panasonic
> CT32G5B, ch. #ABP331, shows a 2SD2539LBMA1 as the H.O.T without an
internal damper
> diode. It does show an external damper stack with a parabola source for
the
> pincushion correction circuit, much the same as in an RCA CTC169 chassis.
It
> seems that this transistor is a special configuration w/o damper for
> Panasonic/Quasar. I found the 2SD2539 specs in the Toshiba site and it
does indeed
> include a damper diode.
>
> Dominic DiLeo
> Atlantic TV
> Freeport, Maine
>
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