Welcome Guest! Be sure you know and follow the Phorum Rules before posting. Thank you and Enjoy! (January 12) x

Thread Closed
Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5

Philco 89 how well do they perform
#7

Nope, no games here. I just did the 89 mod because I'd heard - and read online - so many people complaining about the original autodyne circuit and 36 tube. I found the "Super 89" mod to be very hot on AM and the "police" band.

And then I did another 89 set, this time stock...and it was just as sensitive on the police band as is my Super 89.

The keys to a successful 89 restoration? Bake and rewind that oscillator coil...make absolutely sure the off-on-band switch is clean...all wiring in good shape...and the usual, replace all paper and electrolytic caps and do a careful, complete alignment.

I offered the "Super 89" mod just for those who get fed up with the original circuit built around a 36 tube. The original circuit can be very finicky; but when it works, it works well.

--
Ron Ramirez
Ferdinand IN


Messages In This Thread
Philco 89 how well do they perform - by radiorich - 06-22-2009, 01:27 AM
Re: Philco 89 how well do they perform - by exray - 06-22-2009, 07:26 AM
Re: Philco 89 how well do they perform - by exray - 06-24-2009, 02:55 AM
Re: Philco 89 how well do they perform - by Ron Ramirez - 06-24-2009, 08:44 AM
Re: Philco 89 how well do they perform - by exray - 06-24-2009, 09:18 AM



Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
Philco 42-345 Restoration/Repair
Vlad95, Thank you for the stringing guides and wow there are so manyosanders0311 — 06:01 PM
5U4 vs 5Z4 tubes
A pre war Hallicrafters, and an early one too, very nice! 1936 is pretty early for metal tubes too, which would explain ...Arran — 05:58 PM
Philco 42-345 Restoration/Repair
Thanks Rod, "When you hear the background hiss and no station it usually indicates that the oscillator quit" ...osanders0311 — 05:52 PM
Philco 42-345 Restoration/Repair
RodB :beerchug:Vlad95 — 10:22 AM
Philco 42-345 Restoration/Repair
Vlad, you nailed it. Swiss and German roots.RodB — 09:54 AM
5U4 vs 5Z4 tubes
Well this is a Hallicrafters SX/9 circa 1936. No real issues so far although I dodged a real bullet with a cap that was...bridkarl — 07:59 AM
5U4 vs 5Z4 tubes
The pinout is the same but the 5U4 has a 3 amp filament, verses 2 amps or less on the 5Z4. I think that the pinout of a ...Arran — 12:04 AM
Philco 42-345 Restoration/Repair
By the way. osanders0311 Take a look here: Dial cord stringing Guides May be here you can fount correct string settin...Vlad95 — 11:15 PM
5U4 vs 5Z4 tubes
5U4 and 5Z4 almost identical. I think nothing happened if you left 5U4 instedad 5Z4 long time. Just heater current 5U4 ...Vlad95 — 11:02 PM
Philco 42-345 Restoration/Repair
Hello Vlad95 , Very Funny ! Sincerely Richardradiorich — 11:01 PM

[-]
Who's Online
There are currently no members online.

>