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

48-482
#16

it lives!!!! on all three bands no less.this thing needed almost as many parts as my halli. sx-62!!! but i noticed i got a lot of static and noise in the am band around 700kc and below and no reception i thought maybe the shaft wipers were still dirty but closer  scrutiny revealed that some pinhead i guess  didnt want stations below 700kc and bent the ends of the outboard rotor vanes in so that they would short against the stator. i say this as they were bent in on the b.c. tuning segment ONLY. i cant see this happening accidentally  but concede its possible. i then noticed that there was wire insulation jammed in between the stator vanes and frame. why ive no idea. if its factory will someone let me know why?


Attached Files Image(s)
   
#17

im getting ready to start the alignment on this set. they want the pointer set to the "index line" with the tuner fully closed. i just looked at the dial and i just dont see what they are talking about. my instincts tell me to adjust the pointer so that its entire range of movement is centered on the scale, but that doesnt seem correct in this case does anyone know?
#18

its amazing what a readable set of alignment instructions will do for you. i figured it out.
#19

so i made up a loading unit,for the z403 if ,put a jumper to chassis on the fm 1000 pin 2, got  it the thing all wired and warmed up. turned on the generator at a moderate level on am 400 hz mod. i start fiddling c403c and there is something wrong as ive no tone. check the hookups and recheck. nothing dead as a post.by this time i got the generator at max (kenwood sg-5115). finally i decided to to see if the i.f was resonating at ANY frequency. it resonates like mad at 8.7 mc.i tried walking the if up frequency wise while adjusting c403c it wont budge.hmmm maybe c403b has something to do with this nope! its 8.7 ONLY. i ran a frequency counter on the generator and its right on the money at 9.1. is my if transformer toast? its also important to note that i could get some fm but rather weak on two stations. ive replaced all the paper caps and resistors
#20

in the absence of any adult supervision i pressed on. it would seem that with all the parts i replaced the i.f. will have to be adjusted 0ne more time. i ran the whole string and will need to do it again as the closer i got to the first i.f. the better it got until at the 1st if it peaked as it should. a revisit to step one and two brought success as well. ill finish it up on the morrow. i cant understand why they dont just have you START at the first i.f. like other radios. it would have saved a lot of grief. UNLESS there is a reason i dont quite understand????




Users browsing this thread: 5 Guest(s)
[-]
Recent Posts
Philco 49-1040
Hello bob, that underside looks like it is all original ! Sincerely Richardradiorich — 02:07 AM
Philco 49-1040
Oh yes, many bumblebees and loktal tubes. The cutout is for the speaker.  Here's a photo from a different set. Bob Andersen — 12:59 AM
Philco 49-1040
Bob; Looks like another "Bumble Bee" special, like my Brand Z T.O radios. Is that section they took out of ...Arran — 12:19 AM
Philco 49-1040
Hello Bob, You are like the home for lost tv's like how people bring pets home ! Sincerely Richardradiorich — 12:00 AM
Philco 49-1040
I thought I had an arrangement to restore this set for a customer but his wife said heck no.  Instead, he gave it to me....Bob Andersen — 10:29 PM
Philco 46-480 Electronic Restoration
I kept working on reassembly this week. I wasn’t able to solder for a few days while it was too cold (single digit low t...jrblasde — 09:27 PM
Atwater-Kent 84, restoration.
Well, powering it up would be too good to be true, and I had that feeling. Before I did, I decided to check the coils...morzh — 06:02 PM
An attempt to remove the Field Coil from a G speaker
Thanks Chas, sure will give it a look!morzh — 03:39 PM
An attempt to remove the Field Coil from a G speaker
Mike, Lookup  murrayatuptown on ARF. Seems he has a dilemma with surplus field coils. Could get lucky and have what y...Chas — 01:26 PM
Atwater-Kent 84, restoration.
Hello Mike, I have not checked to see if my console has a fuse or not and far as sets go I have early 30s General Motor...radiorich — 11:25 AM

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

>