Hey guys and gals, friends and pals! In today's video we take a look at this wonderful vintage guitar amplifier from none other than Gibson! If you have any comments or questions be sure to leave them down below! Thanks for watching :)
Great amp, explination, and demo! Just a comment... Gibson made many versions of the Skylark, and you have the GA5 Skylark Crestline. The schematic you were looking at was an older schematic that was more like a Fender champ. The tubes in your amp are: 6AU7 (preamp), 6C4 (phase inverter), two 6AQ5's (power tubes) and a 6X4 (rectifier tube). It also puts out closer to 10 watts as it has two power tubes. I have the same amp, and love it.
The 5Y3 is the rectifier, it's what turns the alternating current coming from the power transformer into direct current so the amp can work. Nowadays we have silicon diodes for that, but back then they had tubes for the job.
Those amps came with a filter circuit. It may have been removed already. It sounds better without said filter, which is sometimes a single part. It’s very easy to bypass if it’s there it but should be done by someone who knows how to work on high voltage circuits.
