Pye R33

[camallison]

Seeing as Joe has just put up the service info, there's a Pye R33 up for grabs on ebay, if anyone is interested:

http://www.ebay.co.uk/itm/PYE-VALVE-WIRE...lephony_SM&hash=item3f2b06419b

Colin

[AlanBeckett]

They're good little sets.
http://golbornevintageradio.co.uk/forum/...p?tid=1108

Alan

[Joe]

The speaker in mine is well and truly kaput so I may have a punt on that. Sadly it's at the other side of the city but there are 'buses.

http://golbornevintageradio.co.uk/forum/...p?tid=1445&highlight=pye+r33

- Joe

[Yorkie]

A lucky stroke it being is Sheffield Joe!

I bet that if you do grab it, you won't have the heart to rob it of its speaker - you'll have an irresistible urge to bring this delightful little set back to its former glory! Speakers are far easier to come by than complete R33s, even though it is in a sorry state. I can't imagine that there'll be many bidders given it's poor cosmetic condition and the fact that it only gets R5 Live.

On my honour, I promise not to enter a bidding war for it!

The R33 must surely be one of the last valve sets, given that it was introduced about the same time as Bush TR82s and Roberts R200s.

Great little set to work on, and very lively. The auto-transformer ensures that it runs much cooler than sets which use a dropper resistor.

Incidentally, though the R&TV circuit calls the solid state metal rectifier 'MR1', the maker's own data sheet refers to it as 'V4' as does the ERT Sheet!

[Joe]

Speakers are far easier to come by than complete R33s

Don't bet on it! I haven't found one in two years of looking. I haven't even been able to find anything which would 'do at a pinch' - a round one I could mount on a baffle-board or even an 8Ω one I could stick a resistor across.

- Joe

[Yorkie]

Speakers are far easier to come by than complete R33s

Don't bet on it! I haven't found one in two years of looking. I haven't even been able to find anything which would 'do at a pinch' - a round one I could mount on a baffle-board or even an 8Ω one I could stick a resistor across.

- Joe

You're sorted then!

The R33 ssed a 6” x 4” 3 Ohm elliptical speaker. 6” x 4” (and 5” x 3”) elliptical speakers are available in abundance, though generally only 8 Ohm but as you say Joe, that's not insurmountable. However, 4 Ohm ones can also be had, but generally in pairs for use in car stereos. These for example at £12.00 a pair, (Buy it Now) but the killer punch is the £7.50 delivery charge:

http://www.ebay.co.uk/itm/Pair-new-4ohm-...Technology&hash=item27acfeeb19

I would have though that local car spares outfits would perhaps have them.

Maplin stock 5” x 3” (125 x 77 x 36 deep) 8 Ohm:

http://www.maplin.co.uk/elliptical-speaker-3277

Blue Aran have 6" x 4" 8 Ohm:

http://www.bluearan.co.uk/index.php?id=EVNL001

£4.00 inc VAT (340 in stock)

They also have 5" x 3" (125 x 77 x 36) 8 Ohms:

http://www.bluearan.co.uk/index.php?id=EVNL001B

£3.54 (273 in stock).

6 x 4” speakers were very commonplace in TVs and I can’t begin to imagine how many have been skipped over the last four decades.

Hope that helps a bit Joe.

[pwdrive]

A newish 8 ohm will probably work ok, modern speaker likely to be more efficient and will help compensate for the 4 to 8 ohm mismatch.

Lawrence.