Dynaco St-70 Vacuum Tube Power Amplifier. One Of The Best Vintage Stereo Components Of All Time.

This video shows the restoration, repair, and testing of the Dynaco ST-70 stereo power amplifier. One of the most copied amplifier designs in history and it was developed in the 1950’s! An amazing piece of audio history. Other Classic Stereo Equipment Video’s - Marantz 2500 Receiver #2 Fisher 800-C Receiver - Marantz 2500 Receiver #1 - Ultimate Guide To Vintage Audio Repair. - Digital Tape Deck Audio Analyzer - Hantek 6022BL PC Oscilloscope Review - Vacuum Tube Heaven - Kenwood KA-5002 Integrated Amp - Sony TA-E88B Preamplifier - Technics SE-9600 Power Amplifier - Pioneer SPEC -1 And SPEC -2 - Marantz 10B Tuner - Nakamichi Dragon 1000P 1000MB 1000 DAT - Sansui BA-5000 Power Amplifier - Pioneer SX-1980 Complete Edition - Rotel RX-1203 Receiver Part 1 - Rotel RX-1203 Receiver Part 2 - Rotel RX-1203 Receiver Part 3 - Trio W-40 Vacuum Tube Receiver - Kenwood KA-3500 - Dynaco Stereo 70 - Bose 551 Receiver And 901 Speakers - Mitsubishi Stereo System - Akai GX-255 Open Reel Tape Deck - Shootout! SX-1980 vs Nova300 - Harman Kardon Sixteen - Monster Receivers From The 70’s - Marantz 2265 - Kenwood KR-8050 - Teac X-1000R - Pioneer SX-1250 - Pioneer SPEC-1 - Pioneer SPEC-2 - McIntosh MC2205 - Nakamichi Dragon - Sansui BA-5000 - Marantz 2500 - Sony TA-F6B - Sansui CA-2000 - Luxman M-300 - Scott 340B - Marantz 2270 - McIntosh 752 - Sansui AU-9900 Part 1 - Sansui AU-9900 Part 2 - Sansui AU-9900 Part 3 - Sansui AU-9900 Part 4 - Marantz 23 - SAE 2400 - Nikko 440 - Nakamichi LX-5 - Kenwood Eleven III - Sansui G-9000DB - Yamaha CA-2010 - Nakamichi Dragon - McIntosh MC2505 - Sansui Eight - Sony EL-7 - Pioneer SX-1980 - Akai GX-220D - Pioneer A-27 - Nakamichi Digital Products - Sansui G-9000DB - Pioneer Silver Rack System - Troubleshooting Failures In Vintage Audio Equipment - Vintage Audio Repair In 30 Minutes! - Vintage Stereo Repair - Phono Repair And Troublesome Transistors - Hakko 808 De-soldering Tool A Must Have - Hazards Of Reel To Reel Tape Deck Repair - Troubleshooting No Audio In Vintage Equipment - General Failure Troubleshooting In Vintage Equipment - Reforming Speakers - Checking DC Offset On Vintage Amplifiers - Why You Must Replace Old Electrolytic Capacitors - Help For the Vintage Audio Fan - Buying Vintage Audio? - Finding A Technician To Fix Your Equipment - Should You Buy Vintage Or New Stereo Gear - Beware Of Vintage Stereo Ad’s -