Radio PYE without model

[FERNSEH]

The 6K6GT is a pentode and the 6V6G/GT is a beam tetrode. 6K6 is essentially a rebased type 41. The 6K6 will deliver a modest output compared with the later and more powerful 6V6. Heater current of the 6K6 is 0.4 and that of the 6V6 is 0.45amp.
6U7G is not a direct equivalent to the 6K7G. 6U7G is a rebased 6D6.
The frequency changer valve is likely to be a pentagrid type 6A8G.

DFWB.

[FERNSEH]

The 6R7G is a much less common double-diode-triode, pin compatible with the 6Q7G. 6R7G is a rebased type 85.
https://www.radiomuseum.org/tubes/tube_6r7.html

DFWB.

[See_Mos]

Knowing the other valve numbers you are probably right about the 6A8 as the frequency changer.

Except for the 6A8 the others mentioned though not exact equivalents are compatible and could be used for test purposes if needed.

I would like to see a closer underneath picture of the the valve next to the coil pack.

[ms660]

Could be wrong but looks like the loudspeaker is of the field coil type yet only 3 wires connecting it to the receiver circuit on the chassis so far as I can make out.

Anyone?

Lawrence.

[See_Mos]

Correct, The output transformer is also mounted on the speaker so only three wires needed
1 from rectifier to energising coil input
2 energising coil output, O/P transformer primary, HT+ to rest of receiver
3 O/P transformer primary to anode

[ms660]

Yes, earlier in this thread I originally thought it might be a tapped output transformer (hum cancelling) It was only today I spotted some other wires lurking that suggested the loudspeaker was of the field coil type, should have gone to my original findings first from some time ago about the Rola 8Z unit:

https://www.vintage-radio.net/forum/...d.php?p=969405

Lawrence.

[ms660]

Dr Watson here again......Spot anything unusual in the fifth photo in Post#1....

Then look at the scale glass, first photo in Post#18....

Then look at the coil box in the fourth photo in Post#6.

Lawrence.

[Nuvistor]

OK Lawrence,
Lots of wavebands on the dial but few coils in the coil box.

Or have I missed it completely?

[ms660]

Yes, that's what I reckoned, looks a bit "sparse" for a six bander.

The scale in the 5th photo in Post#1, the pointer doesn't show in the top scale, unless it's slipped down or not supposed to.

Might be something, might be nothing...

Maybe the OP can tell us how many positions there are on the wave/band change switch, that might confirm either way.

Lawrence.

[See_Mos]

Originally Posted by ms660

Yes, earlier in this thread I originally thought it might be a tapped output transformer (hum cancelling) It was only today I spotted some other wires lurking that suggested the loudspeaker was of the field coil type, should have gone to my original findings first from some time ago about the Rola 8Z unit:

https://www.vintage-radio.net/forum/...d.php?p=969405

Lawrence.

It could be a tapped transformer like the one in the Phillips 170A. In one picture the back of the speaker looks too shallow for an energised type. A side picture of the loudspeaker will confirm which type.

And the coil box has puzzled me as well

[ms660]

Bloc d'accord has drawn a blank so far.

Lawrence.

[ms660]

So....Is this the coil pack...Securit 410..?:

http://www.radiofil.com/schematheque...10,m38692.html

I can't read everything what it says, a bit blurred.

Lawrence.

[ms660]

So far I can make out OC, PO, GO,PU.

GO is long wave.

PO is medium wave.

OC will be a general coverage short wave band

BE will be a band spread short wave band.

PU will be the pickup.

Lawrence.

[ms660]

I think I've managed to figure out some of the connection tags for the Securit 410 coil/switch pack in the link.

Oscillator tags from the top to bottom:

Top = Oscillator anode feed back.
Next = Oscillator grid circuit.
Next = Ground/Chassis.
Next = Ground/Chassis.

RF tags from left to right:

Left = Ground/Chassis.
Next = Ground/Chassis.
Next = Antenna.
Next = Mixer control grid circuit.

Osc adjustments (not sure in which order) GO (LW), PO (MW), OC (SW)

Where I can see, the above seems to agree with what's shown in the OP's photo for this unit.

That leaves a problem, the Pye tuning scale has no LW scale...?

What's the third socket on the rear chassis apron used for? Normally I would expect it to be for an external loudspeaker.

The mains transformer looks like a replacement.

It's looking more like a bitsa.

Lawrence.

[See_Mos]

Originally Posted by ms660

What's the third socket on the rear chassis apron used for? Normally I would expect it to be for an external loudspeaker.

One pin is ground, the other is on pin 6 of the 6Q7 or 6R7 detector, which is not used by the valve, from there a capacitor goes to the volume control. It looks as if the filter components are also on pin 6 of the detector.

tune off station to use the pickup?

I don't think we will get any further with identifying the model but it should not be too hard to reverse engineer a circuit, especially if we can have some more close up pictures.

[ms660]

I was meaning the third set of sockets, the one up by the mains transformer, my apologies for any confusion.

Lawrence.

[See_Mos]

Sorry Lawrence, My mistake, the ones you mean are only just visible. The picture isn't very clear but I don't think there are any wires soldered to those sockets.

We need the dust brushing out and some more pictures.

[ms660]

How about this for a possibility, a Ben Gal receiver, made in Israel, the OP said he got his receiver in Israel, no internal pics but externally there are similarities:

https://www.***********/photos/madate...n/photostream/

According to radiomuseum a lot of their receivers were assembled with bits from European countries including France:

https://www.radiomuseum.org/dsp_hers...ompany_id=9294

Lawrence.

[RastaMan0]

Originally Posted by Station X

What valves/tubes are fitted in you set?

More photo guys

[RastaMan0]

Originally Posted by ms660

The first one might be a 6Q7G, the output valve is a 6K6G, hard to say if that was originally fitted, the 6V6G was the more usual call.

+ 4 photo