ULTIMATE RAG 'LOOP' (1948)

The Ultimate RAG was manufactured by Radio (1936) Ltd in 1948.

6-valve broadcast band radio with internal loop aerial.

Referred to on the schematic as the LP no doubt in reference to the sets loop aerial, which mitigates the need for a long line aerial to a certain degree.

Seen in two cabinet styles, the one with the horizontal wooden slat across the grill seems to be the most common.

Valves (6): 6K7G, 7A8, 6K7G, 6Q7G, 6V6GT, 6X5GT

Intermediate Frequency: 460kc/s

Frequency Bands: 1

Chassis Notes(most schematics can be clicked to download a full size version)

1948 Ultimate RAG

General Construction Notes for Radio (1936) Ltd: Early Radio Ltd. schematics did not show the models, just the year, valves and bands, so some sleuthing is required to find the right one.

Early 30's Ultimate models with three digit model numbers indicated both the number of valves in the set, and the price it retailed for - for example, the model 856 was an 8-valve radio which retailed for $56 pounds. The equivalent Courier models were reversed, so an Ultimate 856 was a Courier 568 (theoretically, at least). This was the Auckland price though, and often the sets would retail for 1 or 2 pounds more in other centres, presumably to cover the freight cost of moving them around the country from the Auckland factory.

Note the use of old resistance terminology on older schematics: ω means ohms and Ω means megohms.

Some 1936-onward 3-letter chassis codes vary the last letter between brands, for example:
BBU - Ultimate model BB
BBR - Rolls (and Golden Knight) model BB
BBC - Courier model BB
All use the same chassis.

Golden Knight, Courier and Rolls appear to use the same copper-painted chassis while Ultimate chassis' are painted silver

After the war a new model code system was introduced, whereby radio models all began with R - the first model being the RA, a dual-wave 5-valve set commonly released in a pressed tin cabinet.

All documented models using this chassis (2 in total)

YEARMODEL NAME
1948Ultimate RAG - this set
1948Skyscraper RAG