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

FT6 speaker
#1

I am wondering exactly how to connect an FT 6 to a speaker? Any help is much appreciated, thank you, Tim.
#2

Hi Tim & Welcome to the Phorum.
Looks pretty easy but I need to know if you are going to be using the original speaker( one with a field coil) or a replacement. Either is fine. What part of Pa are you in? I'm over near Philly.
Terry
#3

Thanks for getting back Terry. My plan is to use a modern off the shelf speaker. I am thinking of installing this unit in a 1936 Rolls I recently got. Of course this is a Ford radio, but fits very well in the empty hole left behind. This also seems like a very high quality well made radio. I am about an hour west of Philly. I work in West Chester.
#4

Very kewl!!! Well here's the service info for your set.
http://www.nostalgiaair.org/PagesByModel...014012.pdf

If look over by the speaker you will see four connections. I don't know how they terminate perhaps in a four pin plug. Anyway the speaker voice coil connects to the output transformer secondary. One side of it is connected to the chassis/ ground. The original speaker had a very low impedance VC like 1.25 ohms. The closest thing you'll find now days will be a 3 or 4 ohm job. Don't use a 8 or 16ohm the mismatch of impedance will cause lower volume and distortion. You could use two 3 ohm speakers in parallel. That would get you down to 1.5 ohms which is good.

The connection from the battery to the field coil #48 you won't have that on your replacement spkr and it doesn't need to be connected like it would be on an AC set. So you can leave it alone.

Now there is the tone control. That would be the terminal that connects to pin 2 of the #42 tube and the output transformer. I don't know if your set has the tone control built into the radio chassis or it is part of the control head. If it isn't it may play OK without it. Or it may oscillate to cure that a small cap from the plate pin (#2) of the 42 tube to the chassis. Something like a .005mfd@630v will work fine.

I'm assuming that this set has been service with all of the paper caps replaced and the electrolytes. All of the out of tolerance resistors have been replaced. Without doing this is like gassing up a 70yr old car and taking it for a spin on the turnpike.
GL
Terry
If you would like to get a better/much shaper copy of the data for your set send Chuck S a note. He can hook you up.




Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
1949 Motorola 5A9M
Nice job on the battery, Bob. Can the box be opened to replace the 9 volters?RodB — 11:32 AM
Philco 46-1209 strange behavior
Thank you for the detailed response MrFixr. To clarify, the hum starts when the tubes are fully warmed up, and goes a...sq65 — 09:15 AM
Philco 46-1209 strange behavior
MrFixr The chassis, if there is no ground pin in the AC plug, due to the Y-caps from L/N to the chassis, is at 60VAC re...morzh — 08:47 AM
schematics
thanks I'll try the polar caps seperatelymseno — 07:38 AM
Philco 46-1209 strange behavior
Hi SQ55, A strange issue indeed!  Just so I have you straight, on a dim bulb you get normal operation after the set warm...MrFixr55 — 12:44 AM
schematics
I think mseno is talking about cap# 27 which is a multisection but in a paper tube. In cases like that I've usually be ...klondike98 — 11:25 PM
schematics
Ohrenet  :roll: For their price I would chase a fly in a field.  :twisted:Vlad95 — 11:21 PM
1949 Motorola 5A9M
A bit more work on the Motorola. I got the repro battery together right up until I realized the snap clips on the top o...klondike98 — 10:45 PM
schematics
Often restuffed. If a twistlock, Hayseed Hamfest makes modern replacements. morzh — 09:18 PM
schematics
Looking for a multi-sectional 8+16 mfd cap. Can't find any suppliers that carry it.mseno — 08:45 PM

[-]
Who's Online
There are currently 1170 online users. [Complete List]
» 1 Member(s) | 1169 Guest(s)
Avatar

>