|
Vintage Telephony and Telecomms Vintage Telephones, Telephony and Telecomms Equipment |
|
Thread Tools |
1st Jun 2007, 11:48 pm | #1 |
Retired Dormant Member
Join Date: May 2007
Location: Runcorn, Cheshire, UK.
Posts: 71
|
FDM repeaters
Hi all,
I've always been fascinated by the old co-ax based carrier trunk circuits, but can't find any decent info on them. I'd be particularly interested in details of repeater amplifiers, together with modulator, filter and demodulator circuits. Schematics especially welcome. Pete |
3rd Jun 2007, 9:16 pm | #2 |
Octode
Join Date: Aug 2005
Location: Saltburn-East, Cleveland, UK.
Posts: 1,786
|
Re: FDM repeaters
Hi,
This forum http://itn.chipfusion.co.uk/ may be helpful, or at least someone in the forums may be able to point you in the right direction Regards Andrew |
3rd Jun 2007, 9:51 pm | #3 |
Retired Dormant Member
Join Date: Mar 2003
Location: Bishop's Waltham, Hants, UK.
Posts: 939
|
Re: FDM repeaters
I'll see what I can find.
I gave a 24 channel system away last year....... Jim. |