Where can I buy used Dynaco equipment?
I probably sound like a broken record, but again I recommend Ebay for an active, if sometimes pricey, selection of Dyna gear. Sometimes you’ll have to pay too much, sometimes you’ll get a steal; but patience is often rewarded. If you’re aware of electronics flea markets or hamfests in your area, give them a look. I’ve found nearly half of my vintage Dynaco components at flea markets, and they’re sometimes cheap just because they’re old or have a blown fuse. You probably won’t score a pair of working ST-70 amps with matching PAM-1s for $35 like I did, but you would definitely be surprised at what does show up for reasonable prices.