1. The PHILCO Phorum
  2. Various and Sundry Categories
  3. Other Radios (Non-Philco)

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

Threaded Mode
zenith 7s330 alignment
fields 100
Member
***
Posts: 228
Threads: 64
Joined: Dec 2013
City: Northbrook, IL
#1

12-02-2014, 11:41 PM
Alignment instructions for the set are laconic to say the least. For the IF -connect osc. to converter grid, 455K.C.,
dummy ant. .5 uF. What does it mean? Do I just inject 455 K.C. from my sig. generator to the converter grid via
.5 uF cap? Same with a "set to scale" procedure - 18 M.C., dummy ant. 400 ohms. Is it their terminology or I just got spoiled by the nice Philco detailed instructions i.e. "connect signal generator to the grid of tube such and such via 200pf capacitor etc, etc... Thanks.
P.S. It is 7S530.




http://www.nostalgiaair.org/PagesByModel...025333.pdf
(This post was last modified: 12-02-2014, 11:58 PM by fields 100.)
Find
codefox1
Silent Key
*****
Posts: 2,128
Threads: 18
Joined: Oct 2008
City: Merrick, Long Island, NY
#2

12-05-2014, 11:41 PM
Well, .5 is a little large for a coupling capacitor, sure you don't mean .05 mfd? Should work anyway. Since this is a transformer set, you don't have to sweat the ground connection. Dummy antennas? Well for regular AM sets with their own loops, about 30 turns of whatever on an empty TP cardboard works to couple generator to radio without direct connection works for me, but for 18 MC, dunno.
Find
« Next Oldest | Next Newest »
Thread Closed




Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
My Philco 37-116 Restore
Are you measuring relative to the centertap or the GND?morzh — 11:57 PM
Philco 610B oscillator wiring
Still not clear on the wiring interface between the 6A7 and oscillator. After refering to the available schematics and s...Tubester — 07:18 PM
Refinishing Ideas
My 37-116 code 121 is the best sounding radio i have...a daily driver. Since we are talking about "changes". ...poulsbobill — 07:18 PM
My Philco 37-116 Restore
Hello, I finally got brave enough to take the cans off the Expander Unit. Got the grid cap wires replaced and back toget...dconant — 06:50 PM
Zenith H725
I got into the first AM IF can today, and found its mica was cracked. Amazing that it was still working. This one makes ...EdHolland — 06:10 PM
Philco model #20
AHH HA , I got it and can’t thank you fellows enough , when I changed the capacitors I took the advice and did not unsol...onlyrick — 02:24 PM
Zenith H725
Hello Ed, yes, I like letting projects run for few days to make sure they don't start acting up . Sincerely Richardradiorich — 01:03 PM
Philco 46-480 Electronic Restoration
I am almost finished with this restoration. All which remains is the power transformer. I cleaned it up some time ago, b...jrblasde — 12:41 PM
Philco model #20
I seem to recall in some TRF sets there being a Local/Distance toggle switch that removes the B+ from the first 24 rf tu...RodB — 09:46 AM
Refinishing Ideas
Hi Doppelganger, After rereading your thread, did you mount the Zenith speakers in the two bottom left and right pos...MrFixr55 — 09:39 AM

[-]
Who's Online
There are currently 853 online users. [Complete List]
» 1 Member(s) | 852 Guest(s)
Avatar

>
  1. The PHILCO Phorum
  2. Various and Sundry Categories
  3. Other Radios (Non-Philco)