I was given a RobertsR600 like the picture below "See if you can do anything with it” This was what I found when I finaly removed the battery cover. PCB and internal bracketry in much the same state. Not worth going any further...

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@daf-96
I was given a RobertsR600 like the picture below "See if you can do anything with it” This was what I found when I finaly removed the battery cover. PCB and internal bracketry in much the same state. Not worth going any further...

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After much experiment, here are a mid 50′s H1184 and a DM526.. I was recently lucky enough to obtain an H1157 7.5volt, which was yellowed with age, but inside the top flap was a strip of original green. many test squares later, and these are the result. All I need to do now is to work out how to bend up the card without splitting the print.
In respnse to an enquiry from “Batterymaker” about the low profile speaker in my BEREC Calypso. I am posting this picture, which shows that it is indeed an inverted voice coil type, there are no markings or logos to give an indication of it’s source. I don’t know of any other UK made sets(apart from the similar SKy Princess) that use this style of speaker.
Later:- The ever ready Sky Casket uses the same speaker
A cup of tea, a slice of my wife’s carrot cake and “Testmatch special” on the wireless. Good Times

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Is that speaker in the Berec version of the Sky Princess one of the type with an inverted voice coil? Didn't know manufacturers on your side were playing with that idea as well. Motorola and Zenith did a few sets with them
Yes I believe it is. You have reminded me that I must take it out of the case and have a look at it from the front, that would reveal all. There is no manufacturers name to give a clue as to where it was made, it could be an import. Not this week, because I’m tied up with other things, but as soon as I can I’ll take out the speaker and post a photo. Perhaps you might recognize it as one from your side of the pond..
These radios are related..
Three radios, each from a different company. Left an Invicta Model 28 Centre a PYE ‘Jewel case’ P114 BQ and Right a PAM 712. Open them up, and the cotrols look similar. Examine the PCB, and you will see that the Invica and the PAM have the same PCB. The Pye is the same, but it’s difficult to photgraph as it hinges up from the front. In fact, Invcita and PAM were subsidiaries of PYE of Cambridge. It’s said that Pye tried out new designs using the subsidiary commpanies in case they were unsuccessful. However in this case the PYE P114 BQ was released a year before the others. The PYE is common, but the other two are regarded as ‘Rare’
All three are in working order.
Yet another ‘Red’ radio to add to my collection. This is a BEREC ‘Calypso’ from 1956. Identical to the Ever Ready ‘Sky Princess’ except the Sky princess is in Blue. Note the unusual low profile loudspeaker. This model is rare as hen’s teeth, so I was pleased to get this at the NVC(National Vintage Communications) fair earlier in the year for the princely sum of £6.00.(Working) The B141 battery also fits the Ever Ready ‘Sky Baby’
A Marconiphone T82B transistorised Attache case set from 1959. Med and Long wave. recently bought from ebay as not working. problem quickly traced to faulty on/off switch. Coupling ‘C’ from volume control replaced. and now works well. case cleaned up and looks good. Originally powered by two 6V (PP1) batteries, now runnig on 2x4AA.
A late model Vidor “Regatta” CN420A from about 1957, shown fitted with repro batteries, the HT battery shown open, to reveal 60 AA batteries (6x10). Estimated life 270 hours, equivalent to the original

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16 “Red” radios from my collection,.An interesting design feature is that in 13 of the 16 sets, the inside of the lid is the same colour as the central band.
All in full working order
Back row left to Front row right
Ferguson, Kolster-Brandes, Invicta, Vidor, Masteradio, Bush.
Pam, Ferguson, Vidor, Cossor, G.E.C. Pye
Berec, Ever Ready, Ever Ready, Ever Ready
Here’s a rare find. A British Pilot Radio Ltd BM109 “Poppet” first sold in 1957, (this set date stamped 1958) altogether a bit of a throwback. as it’s late for an Attache case, but doesn’t have a printed circuit, and the circuit is still using D*91 series valves with high current filaments. Mains/battery, and as bought, had the mains lead cut off. I suspect the previous owner tried out the set, and caused the mains filter capacitor to explode!.(see photo). All waxy Caps changed, as they were all faulty. Strangely the electrolytics all test OK I will not be powering this from the mains, as the on/off switch is only in the neutral line!! The batteries specified are an Ever ReadyAD42 for the fils and an Ever Ready B138 for the HT These are rare(ish) with no pictures of either of them on the net that I could find. My replicas are therefor constructed using the dimensions found in various catalogs. If the cases were stuffed with “D”s and “AA”s then I estimate they would last about 250 hrs, but as they are in fact stuffed with 5xAA for the fils, and 10x Zinc carbon PP3 for the HT I estimate about 60 hrs, but it’s only for show. I was so pleased to get this set, as it’s got great 1950s style, and has cleaned up very well.
Yet another red radio. This one is an Invicta model 28 from 1957. Usual valve line up, D*96 series, but unusually this radio uses an AD4 1.5 Volt battery for the filament supply.
Invicta Radio Ltd was a subsidiary of Pye of Cambridge. (note that the dial and control knobs are the same as the Pye P 114 BQ.) This radio came to me fitted with a replacement loudspeaker with the wrong fixings, fortunately I was able to source a correct example. with this and a complete change of “waxy” capacitors it’s now working well.
My station of choice is “Smooth Radio” on 1557kHz none of the Pye range tune up that far as sold, so a slight re-alignment has been carried out.
This model is listed as “Rare”
It’s brother Model 29 is the mains/battery version.
How long have you been making reproduction batteries for your sets? I started about ten years ago, even went so far as to sell them, but had to get out as it was getting in the way of family. Bill
Hi Bill. I live in the UK and I’ve been collecting Attache radios for about 5 years on and off, having retired from a career as a transmitter engineer with the BBC. I am a great fan of your work. I’ve watched your you-tube videos, and made use of some of your scans, (thanks for posting them). I’m trying to make batteries that are correct for the date of the radios, but it’s difficult as there is very little specific info out there. I’ve just bought a Vidor CN 353 Personal radio, (1947)which had an original H.T. battery still in it! Almost worth the price I paid just to get the battery. The set itself is in a really poor state, the most serious problem is that the frame aerial is missing from inside the lid. this will take a while to sort out I think.
I try to fit Vidor batteries in my Vidor sets, the same with Ever Ready, but everyone seems to use ever ready batteries, so I’m a bit of a fan of Exide, as they changed their design several times during the 40s to the 60s.
I have about 50 radios in my collection, mainly Attache case, but quite a few early transistor portables as well. Two of them use a PP11, which I know you’ve had a go at reproducing. I was lucky in that one of the sets had a battery still in it, so I got a socket and a case.
I hope you find some of my posts interesting.
Regards
Peter aka daf-96
It’s hard to discover the exact dates when past styles of battery packaging were used, so to see a dated picture of a battery is a bonus. The top picture is of a home built radio described in the May 1957 edition of Radio Constructor magazine. The photo is of a pair of replica Eveready batteries made from scans posted on the internet. Now I know that if I need to make batteries for a radio made in 1957. This is the correct design.! How nerdy is that. Even worse, is that I can see some slight discrepancies in the logos and font sizes, which will be corrected.

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In the cash strapped 1950s There was a thriving trade in Britain for kits to build portable radios. Here is one example from 1957. Radio Constructor Magazine published the diagrams and full constructional details, and there were adverts for the kits. The cost for a complete kit was about 2/3 that of the price of a commercially made equivalent. The picture is of the “Rambler”. The components supplied were of good quality, but the fascia and tuning dial reflected the price. This example was competently assembled and after a complete change of capacitors, works very well.
HMV model1415 To my mind an iconic piece of 1950s design. Shown with home made replica batteries fitted. In lovely condition and In full working order.