MARCONI

TF801D	There are two versions, although differences are minor such as replacing a small signal diode valve witha smcndct*r device.
	tf801d_1.pdf [527K] Main operating instructions. tf801d_2.pdf [593K] Technical details including calibration. tf801d_cct1.gif [161K] Early schematic (very poor but complete) tf801d_cct2.gif[179K] Later schematic (good but missing PSU and ALC circuit)
TF2600	High sensitivity AC millivolt meter manual. Includes component layout and schematic.
	tf2600.pdf [365K]

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Last updated
10th February 2004