Check the listing for details. Altec 9475A Preamp Rebuild Kit. Condition: New. Listed at 89.00 USD. Altec 9475APre Amplifier Rebuild Kit If your preamp is noisy, chances are the components have fallen out of spec due to age. After all, they are well over fifty years old! Rebuild your Altec 9475A preamp to factory specs with this electronics component kit. All transistors, capacitors, resistors, diodes and heatsinks needed to rebuild your 9475A are included in this kit. All components are individually packaged and labeled for easy identification. All electronic component values are as specified by Altec. The picture containing the original 9475 preamp & circuit board is for reference and is not included or for sale. This listing is for the electronic components needed to rebuild one Altec 9475A microphone preamplifier. If you need a new replacement printed circuit board (PCB) contact me. I have a limited supply of brand new replacement circuit boards for the 9475A. What is included in this kit? R11/2W 1Mohms 1% R21/2W 1Mohms 1% R31/2W 1Mohms 1% R41/2W 1Mohms 1%R51/2W 330ohms 1% R61/2W 330ohms 1%R7470Kohms 1% R8470Kohms 1%R90.6W 9.1Kohm 1% R100.6W 9.1Kohm 1%R111/2watt 220Kohms 1%R121/2W 680ohms 1%R131/2W 47Kohms 1%R141watt 110ohms 5%R1522ohms 1W 5%C1400V 10nF (.01 uF) Orange Drop CapacitorC2200V 47nF (.047 uF) Orange Drop CapacitorC5Mica Capacitors 270pF 500V 1% C6Mica Capacitors 270pF 500V 1%C7Electrolytic Capacitor Axial 25V 25uFC8Electrolytic Capacitor Axial 50V 100uFCR11N456ATR Diode CR21N456ATR DiodeQ12N3900 TransistorhFE 80+ matched within 5% to Q2Q22N3900 TransistorhFE 80+ matched within 5% to Q1Q32N3900 TransistorhFE 100+ matched within 5% to Q3 Q42N3900 TransistorhFE 100+ matched within 5% to Q4Q52N3053 TransistorhFE better than 125 matched within 10% to Q6 Q62N3053 TransistorhFE better than 125 matched within 10% to Q5HS1Heatsink HS2Heatsink Securely packaged and shipped via USPS Priority Small Flat Rate Box, Insured with a Tracking Number. Shipping price is one price ($9.45) for as many Kits as you order. I only ship to the lower 48 states in the United States. NO INTERNATIONAL SHIPPING Sorry but I do not sell to anyone with less than 10 Feedback comments. 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