Posts: 365
Threads: 76
Joined: Oct 2014
City: Winter Haven, FL
I just started rebuilding a Silvertone 101.614 chassis. The triple capacitor metal can is missing, and I know I can just replace it with three individual caps, but the three dial lamps are missing also. Does anyone know what type bulbs these are? The schematic is really hard to read. It looks like it says type 66, but I cannot find any reference to a type 66 bulb. It will be a while before I can actually power it up, so I just wanted to replace the lamps first.
Thanks in advance.
Pat
Posts: 1,562
Threads: 56
Joined: Nov 2008
City: Sedona, AZ/Placentia/CA
Pat, it really helps to post a picture of the radio or at least a link to the schematic so we can help.
Jerry
A friend in need is a pest! Bill Slee ca 1970.
Posts: 205
Threads: 6
Joined: Jun 2006
City: Moundsville
State, Province, Country: WV
Pat,
After looking at a magnified schematic, I believe the dial lamp is a #44.
Carl
Northern Panhandle, WV
Posts: 365
Threads: 76
Joined: Oct 2014
City: Winter Haven, FL
(10-17-2014, 06:54 PM)jerryhawthorne Wrote: Pat, it really helps to post a picture of the radio or at least a link to the schematic so we can help.
Jerry
Sorry Jerry,
Here's the only schematic I could find.
Posts: 365
Threads: 76
Joined: Oct 2014
City: Winter Haven, FL
(10-17-2014, 07:24 PM)Carl Travis Wrote: Pat,
After looking at a magnified schematic, I believe the dial lamp is a #44.
Thanks Carl,
I'll go with that. But now, I've run into another problem, thanks to an unreadable schematic.
The schematic shows two line-to-ground caps, C45 and C46. However, the chassis has one across-the-line cap, .01 @ 600V. Can I replace that with an X2 safety cap, AND and two .01 Y2 caps as well? Or should I just remove the across-the-line cap and add two line-to-ground caps, as the schematic indicates?
Pat
Posts: 7,285
Threads: 268
Joined: Dec 2009
City: Roslyn Pa
If indeed it is a 44 bulb you may want to use a 47. It runs a bit cooler. Some sets have the bulb very close to plastics dial which can be problematic. You may have seen sets with brown or black marks on the dial. Those can be burn marks from the bulb.
The voltage for the bulb is usually connected in parallel off of the heater winding on the power transformer. Where you could run in to problem is if your set powered the bulb off of the AC line though a balist tube or the heaters strung in series. Your set doesn't. In this type of circuit the voltage and current are very important. Wrong bulb can burned out( usually very quickly), damage the balist tube or other tube in that heater circuit
GL
Terry
Posts: 365
Threads: 76
Joined: Oct 2014
City: Winter Haven, FL
(10-17-2014, 07:57 PM)Radioroslyn Wrote: If indeed it is a 44 bulb you may want to use a 47. It runs a bit cooler. Some sets have the bulb very close to plastics dial which can be problematic. You may have seen sets with brown or black marks on the dial. Those can be burn marks from the bulb.
The voltage for the bulb is usually connected in parallel off of the heater winding on the power transformer. Where you could run in to problem is if your set powered the bulb off of the AC line though a balist tube or the heaters strung in series. Your set doesn't. In this type of circuit the voltage and current are very important. Wrong bulb can burned out( usually very quickly), damage the balist tube or other tube in that heater circuit
GL
Terry Even though the schematic doesn't show it, I've got three lamps in series off of the heater windings. Still use #47?
Pat
Posts: 1,562
Threads: 56
Joined: Nov 2008
City: Sedona, AZ/Placentia/CA
Pat, I would follow the schematic and replace the line input with two .01mfd either "Y" or "XY" caps as indicated. Replace the existing one across the A/C line. These should be "safety caps" used in this position. They will not fail shorted which is nice across the A/C line. Many people just remove them totally. It won't hurt the radio but may increase the noise from A/C line problems.
Best, Jerry
A friend in need is a pest! Bill Slee ca 1970.
Posts: 365
Threads: 76
Joined: Oct 2014
City: Winter Haven, FL
(10-17-2014, 08:22 PM)jerryhawthorne Wrote: Pat, I would follow the schematic and replace the line input with two .01mfd either "Y" or "XY" caps as indicated. Replace the existing one across the A/C line. These should be "safety caps" used in this position. They will not fail shorted which is nice across the A/C line. Many people just remove them totally. It won't hurt the radio but may increase the noise from A/C line problems.
Best, Jerry
Thanks Jerry,
Just the answer I was looking for.
Pat
Posts: 7,285
Threads: 268
Joined: Dec 2009
City: Roslyn Pa
Hey Pat
Are you sure the bulbs are in series?? That would mean that each bulb would have to be rated @ 2v each.
Terry
Posts: 365
Threads: 76
Joined: Oct 2014
City: Winter Haven, FL
(10-18-2014, 08:33 AM)Radioroslyn Wrote: Hey Pat
Are you sure the bulbs are in series?? That would mean that each bulb would have to be rated @ 2v each.
Terry
My error, Terry.
Maybe I need to change my medication. They are in parallel.
Pat
Users browsing this thread: 1 Guest(s)
|
|
Recent Posts
|
|
trying to identify this wire type
|
| The red wire is rubber covered wire.
The others are cotton braid over rubber often in colors or a tracer, also strand...Chas — 02:43 PM |
|
trying to identify this wire type
|
| Greetings Phorum members,
Hope you can help me identify this type of wire in the photo I have attached. I am not sure ...georgetownjohn — 01:53 PM |
|
Philco 60 Squealing
|
| All correct shields must be in place, all tubes correct no subs of any kind.
Check any soldered, riveted ground conne...Chas — 01:24 PM |
|
Philco 60 Squealing
|
| I have recapped and replaced out of tolerance resistors and so on. Radio plays nicely on fairly strong stations. The pro...dconant — 10:55 AM |
|
Philco 46-420 Code 121 Reception issues
|
| Welcome Eric,
I agree with Bob and far as the two main electrolytic filter capacitors did you change them yourself or w...radiorich — 11:43 PM |
|
Philco 46-420 Code 121 Reception issues
|
| You mentioned the Philco manual and going through the check points...just to be sure we're on the same page here's the m...klondike98 — 08:13 PM |
|
Philco 42-1008 conversion kit
|
| Interesting. I haven't seen that before.klondike98 — 07:02 PM |
|
12' Philco
|
| Yes I had looked for it on the web as well some time back and could not find it. I was glad to see it turned up in Ron'...klondike98 — 06:59 PM |
|
Shadow Meter Bulb
|
| Now if you had a set with a tuning light then the bulb type is important to the circuit, some sets used those prior to t...Arran — 04:58 PM |
|
Shadow Meter Bulb
|
| Ok. Thanks for the correction.RossH — 03:09 PM |
|
Who's Online
|
There are currently 4769 online users. [Complete List]
» 3 Member(s) | 4766 Guest(s)
|
|
|
|
 
|
![[-]](https://philcoradio.com/phorum/images/bootbb/collapse.png "[-]")
