Other radios based on the same chassis:
5-valve broadcast band mantle radio.
One of the first Collier and Beale models, released during the war.
Lamphouse sold these under their Ensign brand, and it appears they didn't even badge-swap it. It may be impossible to tell an Ensign-sold model from a Pacemaker one.
Lamphouse Annual, 1942
Intermediate Frequency: 455kc/s
Frequency Bands: 1
Chassis Notes(most schematics can be clicked to download a full size version)
General Construction Notes for Collier & Beale Ltd:
Model numbering followed no real sensible scheme until around 1940 - and prior to 1934 apparently no model numbers were assigned at all.
From 1940 a 3- or 4-digit system was employed where the first digit indicates the number of valves, the second digit is the number of bands and the third is the year of manufacture. From 1950 the last digit became two digits, eg: 5151 is a 5-valve broadcast-band only from 1951.
From 1957 model numbers were replaced with model names, ie the Pacemaker Buffalo - which makes the year of manufacture hard to determine unless service info is consulted (although C&B often released service info after the radio, and the date on the service info was for its release, not that of the model.
| YEAR | MODEL NAME |
|---|---|
| 1946 | Pacemaker model 516 |
| 1945 | Pacemaker model 515.2 |
| 1946 | Pacemaker model 516A |
| 1945 | Ensign model 515.2 'Pacemaker' |
| 1942 | Pacemaker model 515D |
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