Communications,  Test Equipment & Interesting things….

Here we have a selection of vintage goodies that do not really fit into our other sales pages.   One off items of interest to radio and maybe in the future audio enthusiasts.   Most things are as found but a full description of their working state will be included.   Some items will be serviced and come with our standard six month return to base warranty. 

Vintage and modern communications equipment,  test equipment for your workshop,  useful bulk components and all those kinds of things.    This page will not be updated as often as our main overhauled and diy radios for sale part of the site. 

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Epoxy resin anyone?  This is what happens when you refuse to replace your valve radios grid coupling capacitors!   

Stock last updated on 20/5/20
New items added on 12/2/20

Almost everything is sold at the moment.  Due to the lockdown collecting heavy items is impossible and we are not accepting visitors to the workshop.  Parcel services all operational.   Hopefully I can find some more comms goodies out of current stock.   RB 7/4/20   

Greyshaw Instruments SG50 RF valve signal generator.
This unit will add a bit of colour to your workshop and a very well made and useful item it is too.   I can't say I have ever seen another Greyshaw Instruments piece of test equipment, it is British made and has a really easy to read front panel dial.   The front panel is made from Perspex or acrylic of some kind,  and the whole generator is housed in a steel case which is only 3.5" deep  -  it has a small footprint.    Frequency coverage is 100 KHz to 80 MHz in 6 ranges and you will be able to go higher in frequency using harmonics.   It is working as found, completely original and ready to go.  You might want to change a few capacitors for long term reliability and clean the switches.  The output is via a coax flying lead on the side of the case.   Supplied with the original rather tatty sales leaflet which is nice to have but I am sure you will soon figure out how to use this 1950's device.    Dimensions are 13" wide, 9" high and 3.5" deep.
Price reduced to £38      UK Delivery  £10   Sorry this is sold.

Advance H-1 Sine / Square wave Valve audio signal generator
For restoration.   It does work but the output is a bit on the feeble side,  I suspect it will only need a few wax paper capacitors replacing to make it 100% again.  This audio generator covers the range of 15Hz to 50KHz and will make another useful addition to your radio workshop.   Condition wise it really is good,  possibly the best cosmetic Advance generator we have had in for a long time.   The display is backlit on this model.   
Price £45       UK Delivery  £12  Sorry this is sold.   

1920's? Pye Decade resistance switch box
This must be going on at least 100 years old,  if not a little more.   An early offering by Pye of Cambridge.   The values are remarkably accurate given its age when compared to my all singing and dancing Fluke multi meter!  The base box is hardwood,  it is arranged in 100's 10's and 1's  and the idea is you set the controls to the required value for your experiment,  or to say balance a resistive bridge and use it to "compute" the value of the resistor on test.   Fascinating.  All original too.  Go on you know you need this….
Price £10      UK Delivery  £6.00 Sorry it has gone. 

1960's Hacker AL42 standalone valve audio amp
This was designed to go with the Hacker record players of the time, as a powered extension speaker and thus giving the option of stereo reproduction at a cheaper price.    Like the record players the amp is very well made and this one has survived in almost perfect condition.   It is completely original,  still in good working order.  It has a pair of ECL86's as a push pull amplifier,  set up in much the same way as the Hacker Mayflower II radio output stage.  If you don't want to use this as a powered extension speaker it would also make an excellent quality workshop amp,  or you could even use it as a guitar amp  -  there is more than enough gain for this application  -  it looks the part too!   Controls on the side are volume/ on/off  and treble / bass.    The pots are a bit crackly and like all things of a certain age I suggest at the very least you give this a good service before putting back into regular use.   No damage,  the grille is very clean and straight on the front.   
Price £85        UK Delivery  £13
Dimensions 10" wide, 11" deep, 10" high

Sorry this is sold.

C1993 Lowe HF225 Communications Receiver 
Fully working,  in good condition.  This is one of the best British made general coverage receivers of the past 30 years  -  hard to believe it is nearly 30 years since this model came out.  Built in Matlock,  downstairs in the workshops of Lowe Electronics the quirky HF225 is a proper receiver in a small cabinet.   Good audio,  excellent filters and full HF coverage this example has the benefit of the optional Synchronous detector board which gives almost HiFi audio quality on stronger SW broadcast stations,  and includes NBFM for 10 and 11M or anywhere else that FM might be in use.   It has a 200 Hz CW filter,  and switched 2.2,4,7 and 10 KHz IF filters.  The front end is very strong with high overload margins.    Complete with the original paperwork manual and listeners guide and the original Lowe mains power supply.    I have a HF225 which has been part of my listening equipment since 1994.  One of my favourites and if I could justify it I would keep this one too!   

Price,  serviced in GWO £250    UK Delivery £10     EU £28  -  £35
Sorry this is sold

C1955 Racal RA17  General coverage professional comms rx

In my mind the undisputed heavyweight champion of British communication receivers,  the RA17 in its day,  and indeed today in many ways sets the standard for general coverage receivers.  Used in diplomatic embassies around the world,  by the RAF, spooks (ahem GCHQ),  the BBC monitoring service at Caversham, NATO, we even sold RACAL receivers to the US military.  Yep they were good and back in 1955 the purchase price was almost the same a small house.  So they were not at all aimed at the amateur.  Although one or two with deep pockets had one.   Back in the 60's there was an RA17 at the show station of the  RSGB.   The list goes on.   This model made Racal who went on to build all manner of communications and military kit, and eventually evolved into what we now know as Vodaphone.   They are not doing too bad either!   

Well driving this beast takes a little bit of getting used to,  again it is a Wadley Loop system receiver  - the original?  I am not sure about that but it is certainly the best.   You have to select the MHz dial first, then adjust the KHz dial  (which is the longest 35mm analogue scale dial ever fitted in a receiver of this type).   Excellent accuracy and you do not need a frequency display to see where you are.  The dial can be calibrated by the built in 1 MHz and 100 KHz crystal marker signals.    Stability has to be heard to believe.  I find even from cold you can tune in a CW station and leave it going for hours and it never seems to drift.

Condition wise it is the standard rack mount version, 19".   Excellent front panel and lettering.  The whole thing has been thoroughly overhauled and is working very well now from MW up to 30 MHz.  CW is fantastic with the switched crystal filter which goes down to 100 Hz bandwidth.    For AM and SSB / data there are 8KHz, 3.5 Khz, 1.5 KHz, 750 and 300 Hz filters.   A full copy of the manual is included and it comes with the correct,  original spec Racal mains lead.     Antenna connections are via an angled PL259 socket which  replaced the original input  (this was done prior to us getting the receiver).   Audio output  -  this receiver will drive an external 3 ohm or 600 ohm load,  which is highly recommended as the internal speaker is tiny and only really there for testing purposes.   If there is anything negative to say about the RA17 is has to be the internal speaker and rather poor audio amplifier that they used.   An EF91 no less  (which is really a high gain IF / RF amplifier pentode!)     I have always wanted to own an RA17 but only recently realised that little dream (yes I have another receiver with my name on it!) and now it is your chance to own this cold war wonder.    This baby is ex RAF if you are interested….
Price £525      This includes personal UK mainland delivery.  There will be a £20 fuel surcharge for deliveries to Cornwall and Scottish highlands.   Sorry no delivery to Northern Ireland or Ireland,  however I am quite happy to meet up at a UK mainland ferry port.   Email for details.  This price also includes an extension speaker which you are really going to want to use for long periods of listening.   You will also get driving lessons should you need them and some genuine enthusiasm :-)  Oh and I will carry it for you too.   The badge says 67 lbs
Afraid the Racal is sold.

C1950 Eddystone S740 Communications receiver  (overhauled)
I like the old Eddystone cabinet layouts,  there is something about the half moon style dials and the multicoloured printing against the black crackle painted cabinet that sets them apart from the blander grey models of later years.   Definitely has a war time feel about the controls and layout of this receiver.   It was aimed at the high end of the amateur market and performs very well with even a simple antenna system.    There is nothing overly complicated about the receiver, it has the usual single conversion octal valved superhet with a BFO for CW,  you can tune in SSB signals with ease too when the RF gain is backed off a little.   It does have an extra RF stage amp.  The dial has a slow motion drive with a logging scale on the right hand side.  Condition wise it is very presentable,  if you want me to be picky there is a little bit of wear on the thumb plate at the rear of the wave change switch knob but this is hardly noticeable .  The dial and case are excellent.    I have overhauled the chassis,  re-aligned it and it is good to go.   All you need is a suitable 3 ohm extension speaker and a length of wire up in the garden.  You will be listening to the world in no time.   I was really tempted to keep this for myself as I love that dial.   Oh well I think I have far too many radio toys already..   

Price  (overhauled) £275    UK Delivery £15    EU £28  -  £35
Dimensions are 17" wide, 9" high and 9" deep so not too big at all.  Remember you will need a 3 ohm extension speaker or phones to use this radio.
Sorry this one has gone.  Sold.

A little bit of BBC monitoring back in the 1960's     Those were the days.   No heating required.

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