Wireless of the Week - week 41

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Wireless of the Week - week 41

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Bruce Parker (RIP) Wireless of the Week - week 41 25-11-16, 00:12

cletrac (RIP) And there's this thread on... 25-11-16, 00:53

Mike K 22 25-11-16, 06:39

Bruce MacMillan The increased production of... 25-11-16, 08:57

Tim Bell Would be great if anyone has... 25-11-16, 11:26

Mike K Linear 25-11-16, 13:13

Chris Suslowicz The four 807 version of the... 25-11-16, 21:19

25-11-16, 21:19

Chris Suslowicz Chris Suslowicz is offline

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Join Date: May 2007

Location: England

Posts: 852

The four 807 version of the RF Amplifier was the MK.1 and extremely inefficient, so the design was re-worked to improve things. (Adding a cooling fan to the dynamotor and reducing the 807s to two, with corresponding circuit changes resulted in a rather more usable unit that could be operated continuously instead of a maximum of 15 minutes per hour.) I believe the WS22 amplifiers were conversions of the Amplifier, RF, No.2 Mk.3, with the addition of a meter for aerial current (using the existing metering boxes) and so on.

Chris.

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