| Author | Message | ||
| Anonymous |
Do you use them? | ||
| Steve Kennedy |
Typically, the DEEP switch is used to get additional bass boost, especially when using the amp with a bass guitar. The BRIGHT switch is usually used to add a bit of sparkle that is lost when using a guitar with a humbucking pickup. These aren't as naturally bright as single coil pickup. As with any tone-modifying element, you use it when you need it and everyone's "taste" is different. It also depends on the speakers your are driving. Steve | ||
| John D. |
I recently acquired a silver badge 65-210, and it's a beautiful amp. It's an early on because it has the "cover plate" where the 12AX7 used to go on the chassis. But I just noticed the "Hi" and "Lo" function on the front panel standby switch doesn't seem to work. I also have a 65-112 and it noticiably drops the wattage when toggled. So...what is it most likely to be? A bad switch, loose wire...or something I need to take into the shop (rats...they'll have it for WEEKS!)? I'm not an electronics guy, but I have a friend who is. I'm just wondering what the most probably cause of the problems is. Any ideas? | ||
| Steve Kennedy |
It could be a bad switch. The Hi-Lo positions are simply selecting a different plate voltage for the output tubes. On the older models, an alternate winding on the power transformer primary was selected to lower the secondary voltages (all secondary voltages are affected). On the newer models (1977 & later), a different secondary winding was selected. In the high-power position, approximately 700+Vdc is applied to the output tube plates. About 400Vdc is applied at the Low power setting (about 1/2 power). On an old model, you might hear a reduction in sound just by changing the switch to the Low position because it effects ALL power supplied, including those feeding the low-level preamp circuits. This power reduction on a new amp is ONLY the plate supply of the output tubes so you normally won't hear any change until you reach overload (since it happens earlier in the Low position). Steve | ||
| Ti Loup |
Hi from France, I have a Vantage The Ghost guitar (The Paul copy), with two humbucking pickups, and a phase inversor switch between the two pickups. I use the Music Man 115 RP bright switch with the phase inversor switch, and guitar sounds almost as Strato !...  |
Tue, 03/25/2014 - 09:27
#1