Every once in a while, I’ll dig through my box of forgotten designs and stumble across one that picks my interest. A lot of times I won’t remember what’s actually in the box or what circuit I designed so it’s almost like a rediscovery of where I was in that moment in time. Now not…
While browsing through one of the online marketplaces, I stumbled upon this little gem. The price was right—only $40! I didn’t care if it worked or not, as I had other plans for it. The tube complement consisted of a single 12AX7 and 12AT7. Initially, I thought it could work as a small preamp, but…
Servicing the Amplifier – Old Capacitors Out, New Capacitors In First thing to do was to replace all the electrolytic capacitors through out the amplifier. There wasn’t any hum or leakage on the originals, but they were well past due to be swapped out. Pulled out the old japanses caps and replacement them with some…
Recently I was browsing through Reverb as I do on occasion and stumbled across this little gem. Tried doing a little research on what the amp actually was or who made it, but could find very little detail on it. The price was pretty cheap, amp was in good condition however the seller said there…
This will be the first in a series of amp conversion posts that I am working on over the next few months. I will be showing how I go about planning out what i want to change on the circuit, the overall goal for the amp and the process of converting. First up – Bogen…
