515P

Sobell Ind., Slough

Data
Forum
Pictures
Collections

  • Year
  • 1954
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 79393

Click on the schematic thumbnail to request the schematic as a free document.

 Technical Specifications

  • Number of Tubes
  • 5
  • Main principle
  • Superheterodyne (common); ZF/IF 470 kHz
  • Wave bands
  • Broadcast, Long Wave and Short Wave.
  • Power type and voltage
  • Alternating Current supply (AC) / 200-250 Volt
  • Loudspeaker
  • Permanent or electro-dynamic (moving coil), system not known yet.
  • Material
  • Bakelite case
  • from Radiomuseum.org
  • Model: 515P - Sobell Ind., Slough
  • Shape
  • Tablemodel, low profile (big size).
  • Dimensions (WHD)
  • 16 x 11.5 x 7 inch / 406 x 292 x 178 mm
  • Notes
  • identical to H.M.V.1360.

 Collections | Museums | Literature

 Forum

Forum contributions about this model: Sobell Ind., Slough: 515P

Threads: 2 | Posts: 6

Still not terribly sure if I am doing this the right way according to forum rules, but I got the chance to spend some time with my Sobell 515P, and all of the data sheets I can find indicate that V2 is an EAF42. On my set V2 is an EF89.

This is an 8 pin base, and pulling up the comparison, I find the whole pin out to be different, and the original diagram shows L13 to be mounted on the back of the chassis.

I am wondering if there has been a lot of surgery on this model long ago (for none of it looks disturbed), or if indeed, it is a different circuit which has been employed, perhaps in order to allow the EF89 rather than the original EAF42.

The characteristics are similar, but not identical, and pin 6 is certainly not the grid on the EF89.

Any hints please?

David MacFarlane, 26.Jan.19

Weitere Posts (3) zu diesem Thema.

Hi, I'm new to Rmorg, and not terribly sure if I am entering in the corresct fashion, nor indeed if anyone might get to see this, - fantastic and complex as the org is, but here goes -

I acquired a Sobell 515p some time ago, and have had difficulty in receiving stations on sw, mw or lw.

I tried adjusting the If's an tuning coils ever so slightly, bringing them back to where they were when I got no result.

I was about to inject signals as per textbook instruction, when I noticed that the valves seemed to be very different from the book diagrams.

The book says V1 to V5 respectively, are ECH81, EF41, EBC41, EL84 AND EZ40.

The line up in this old set is as follows - ECH81, EF89, EL84, EBF80 AND EZ80, Again, respectively V1 to V5.

I am not even sure that EL84 is in the right order, although in one of the sketches, V3 and V4 seemed to change places, which would allow EL94 to be correct.

The rest of the valves do not seem to figure, since EF41 and EBC41 are different bases.

I cannot see the similarity between EF89 and EF41, unless the bases have been swapped, but there is no evidence of this, and it seems an unlikely candidate. Can anyone help?

Dave.

David MacFarlane, 15.Dec.18

Weitere Posts (3) zu diesem Thema.