RE: LF: RE: G3LDO 500kHz rig

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Subject:	RE: LF: RE: G3LDO 500kHz rig
From:	"Ken Wright" <[email protected]>
Date:	Sat, 1 Mar 2008 09:13:35 -0000
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Thank you Peter for the info.

Regards.
Ken   M0KHW

-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Peter Dodd
Sent: 29 February 2008 23:52
To: [email protected]
Subject: Re: LF: RE: G3LDO 500kHz rig

Ken M0KHW wrote
> How many watts is the PL519 running?, I have some 807s I was thinking of
> using, but they like 750 volts on the anode.
>   
The PL509/519 is very rugged and will give far more power than an 807 at 
relatively low HT voltages.
I run my PL519 at around 80watts output although it is capable of a bit 
more without exceeding the anode dissipation.
The only downside is that the PL509/519 requires 40v for the heaters but 
I had a suitable transformer in one of my many junk boxes.

In 1998 LX1PD used a transmitter on 136kHz that used 16 PL36s in 
parallel. The PL36 was also a TV line TB valve.

regards

Peter, G3LDO

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