Thanks,
the reason for asking is that the article is translated and presented in Norwegian magazine
"Amatör Radio" nr 2/2003, and I received some comments locally, also seems to
be a mistake about a 0.07ohm resistor in a shortcircuit protection circuit, or perhaps it is
only in the Norwegian translation(?), 0.7 ohm would have 7V voltage drop @10A - and would have
to handle 70W power, hi !!
73
Jan-Martin
mailto: [email protected]
http://www.laud.no/la6nca/LA8AK/ (Reflecties door LA8AK)
---
J M Nøding, Datakvalitet, TTS, Kristiansand
Telefon 0047-380-52660, 9077-7126 (QTH: 0047-380-87178)
-----Original Message-----
From: G4WGT [mailto:[email protected]]
Sent: 7. februar 2003 21:00
To: [email protected]
Subject: LF: RE: G0MRF's class D transmitter for 136kHz (Radcom January)
Hi Jan-Martin,
I am also building G0MRF's 300 w Tx.
The transmitter requires 24 volts for the varicap tuning and 12 volts for
the rest of the circuit, the PA requires 36 or 45 volts (some explanations
come in part 2 February Rad Com, Hugh M0WYE has given you some details in
his reply), I have provided a 24 volt stabilised supply and from this a
second regulator for the 12 volts, the 36 volts supply is unregulated, there
are no specific details regarding power supplies in the articles, power
supply options are left to the constructor.
Let me know if you require any other info, if I can help I will.
Regards es 73
Gary G4WGT.
-----Original Message-----
From: [email protected]
[mailto:[email protected]]On Behalf Of
[email protected]
Sent: 07 February 2003 11:34
To: [email protected]
Subject: LF: G0MRF's class D transmitter for 136kHz (Radcom January)
Supply voltage seems to be a somewhat obscure.
Can somebody confirm if it is 12V? (...hope it is 48V)
73 Jan-Martin
[email protected]
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