Was great to check into the Drake Tech Net on Sunday PM on 7238 at 2000Z, thanks to all the stations who offered some insights to the PTO and Filter questions I had. With the cold WX and the INRAD sale I thought I would consider buying a new filter but will keep looking for a used one to replace the Bad Tedford 8 pole in the TR-4. I did buy some matched crystals and may try a homebrew 4 pole and see how it 'plays' I recently received a nice little 4 plole circuit board from kits and parts unfortunately it is just a bit too wide to fit in the original holder.
While continuing to look for a 'stock' unit I have collected some parts to try to make one but have not gotten one to sound good yet. I put some of my notes on my blog http://pgerhardt.blogspot.com. Several mentioned the problem of having to get two filters an equal distance from the carrier freq and the cost of two INRAD is not justified (to me anyway). Did some more reading on the PTO and it seems like the T4Xb PTO should work well in the TR-4. After redoing the T4 PTO I will probably try to clean the TR-4 PTO bearing and maybe add the braid to the 'fork' on it. These two issues are on my winter list for the Drake radios. Paul Gerhardt K3PG http://pgerhardt.blogspot.com QRP ARCI 6674 FP 274 "You must do this work with love or you fail." -- John Muir, from How to Keep Your Volkswagen Alive _______________________________________________ Drakelist mailing list [email protected] http://mailman.zerobeat.net/mailman/listinfo/drakelist
