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Old 13th Aug 2017, 8:03 am   #26
Heatercathodeshort
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Join Date: Jun 2005
Location: Warnham, West Sussex. 10 miles south of DORKING.
Posts: 9,145
Default Re: And the next one! a GEC BT2147

The original TRF unit was replaced by an IF strip when ITA conversion took place. GEC supplied an external tuner together with a service exchange panel thus converting the receiver to a superhet.
They did not consider universal converters [Band 3 to Band 1 aerial converters] satisfactory. This made a very high quality and cheap conversion. I think GEC only charged around £2 for the exchange unit plus the cost of the tuner unit that was mounted in a Bakelite box. The original returned units would have been converted to an IF strip making the RF section [that was in the external converter] redundant.
This may well explain the removal of the RF amp in yours. The loose converter was probably lost some decades past. John.

Last edited by Heatercathodeshort; 13th Aug 2017 at 8:20 am. Reason: Added info.
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