Tuesday, 22 January 2013

472KHz TX

 Mine is based on the 472KHz VFO http://www.gw3uep.ukfsn.org/100W_QTX/472_kHz_vfo.htm and 25W PA http://www.gw3uep.ukfsn.org/25W_QTX/472_25W_QTX/472_kHz_25W_PA.htm from GW3UEP.

I have the PA from the 500KHz TX that is in this blog based on a M0MBU design as well.

The capacitors and IC I picked up from Rapid.(Bought 2 sets)

  
Line No.  Product Code  Description  Quantity  Each  Total
1 83-0354 4024b 7 Stage Binary Counter         2 £0.358 £0.716
2 83-0380 4049ub Hex Inverters/buffers         2 £0.262 £0.524
3 10-1455 6n8 100v Polypropylene Capacitor 8 £0.126 £1.01
4 10-1795 1uf 100v Mks4 Poly Capacitor Case L 2 £0.271 £0.542
5 10-1805 100n 250v Mks4 Poly Capacitor Case B 4 £0.148 £0.592
6 62-2162 22k 0.6w Metal Film Resistor - Pack of 100 £1.63 £1.63  

I have a number of variable capacitors and a die cast box fore the VFO stage.


1 comment:

swindon analog asic design said...

Informative post. Really helpful in my research.