Denco Turret Tuner - UK Vintage Radio Repair and Restoration Discussion Forum

BobGreen · 23rd Oct 2012, 10:32 pm

In the 1950s one of my school teachers gave me his badly built HF comms receiver based on the Denco turret coil set. It worked so poorly that I dismantled it and later gave the tuner coil assembly part away. Does anyone here remember this unit or even got one to work well?

AC/HL · 23rd Oct 2012, 11:00 pm

I seem to remember a PW communications receiver in one of the PW circuit collections books. I think that used a Denco turret. It was largely based on EF91 or 92 valves. If I can find it I'll check.

AC/HL · 24th Oct 2012, 1:24 am

It is in "25 Selected Circuits for Amateurs" published in 1962, so is a bit later than yours. It uses EF91s and an ECL80.
The turret is a Denco CT7/B with 3 SW bands and the text says additional coil strips can be purchased for LW and MW, but it does not say whether this would be additional or in place of the others.

llama · 24th Oct 2012, 5:52 pm

The latest Radio Bygones (No. 139) has part 1 of an article by Stef Niewiadomski called "Coil Packs" but it also covers turrets, including Denco ones. Presumably part 2 will be in the next edition.
Graham

Ed_Dinning · 24th Oct 2012, 7:08 pm

Hi Gents, some of the earlier Malloy & Poole books show denco sets which used these coil turrets; some research should get you the official circuits

Ed

23rd Oct 2012, 10:32 pm	#1
BobGreen Retired Dormant Member Join Date: Jan 2011 Location: Egham, Surrey, UK. Posts: 219	Denco Turret Tuner In the 1950s one of my school teachers gave me his badly built HF comms receiver based on the Denco turret coil set. It worked so poorly that I dismantled it and later gave the tuner coil assembly part away. Does anyone here remember this unit or even got one to work well?

23rd Oct 2012, 11:00 pm	#2
AC/HL Dekatron Join Date: Nov 2003 Location: Heckmondwike, West Yorkshire, UK. Posts: 9,643	Re: Denco Turret Tuner I seem to remember a PW communications receiver in one of the PW circuit collections books. I think that used a Denco turret. It was largely based on EF91 or 92 valves. If I can find it I'll check.

24th Oct 2012, 1:24 am	#3
AC/HL Dekatron Join Date: Nov 2003 Location: Heckmondwike, West Yorkshire, UK. Posts: 9,643	Re: Denco Turret Tuner It is in "25 Selected Circuits for Amateurs" published in 1962, so is a bit later than yours. It uses EF91s and an ECL80. The turret is a Denco CT7/B with 3 SW bands and the text says additional coil strips can be purchased for LW and MW, but it does not say whether this would be additional or in place of the others.

24th Oct 2012, 5:52 pm	#4
llama Octode Join Date: Jun 2006 Location: St Osyth, Nr Clacton, Essex, UK. Posts: 1,482	Re: Denco Turret Tuner The latest Radio Bygones (No. 139) has part 1 of an article by Stef Niewiadomski called "Coil Packs" but it also covers turrets, including Denco ones. Presumably part 2 will be in the next edition. Graham __________________ Half my stuff is junk - trouble is, I don't know which half!

24th Oct 2012, 7:08 pm	#5
Ed_Dinning Dekatron Join Date: Jan 2004 Location: Newcastle upon Tyne, Tyne & Wear, UK. Posts: 8,196	Re: Denco Turret Tuner Hi Gents, some of the earlier Malloy & Poole books show denco sets which used these coil turrets; some research should get you the official circuits Ed