The Vintage Circle

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Figure 6. Two PCB holes drilled out to 2mm (the third hole is now redundant and does not need to be enlarged).	Figure 7. Replacement capacitor mounted.	Figure 8. Installation of jumper wire on the underside of the power supply PCB.	Figure 9. Two tantalum capacitors on either side of the black axial capacitor, closeup of a removed tantalum burnt/leaking.
Figure 9. Two tantalum capacitors on either side of the black axial capacitor, closeup of a removed tantalum burnt/leaking.	Figure 10. Two new tantalum capacitors installed on audio board (installation repeated for other board).	Figure 10. Two new tantalum capacitors installed on audio board (installation repeated for other board).	Figure 1. B739 Tuner Preamplifier partial disassembly.
Figure 2. B739 FM Tuner Preamplifier after restoration, powered up and operating.	Fig 1. AGI Model 511 Preamplifier front view	Fig 2. First step in repairs after replacing fuse holder and power supply capacitors - black axials, left side	Fig 3. Tapered Reamer (model Hozan K-441, suitable for 3~12 mm diameters)

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