- #Fender musicmaster bass amp schematic trial#
- #Fender musicmaster bass amp schematic tv#
- #Fender musicmaster bass amp schematic free#
I've seen (and owned) a number of these silverface Musicmaster Bass amps over the years. I don't know what has happened to this amp since manufacture but I can say two things, unequivocally: The pilot light is dead stock and the chassis is unmodified (no extra holes). There is no iron currently in this amp so I get to choose. Maybe a Z-28 type circuit using an EF86, 2x 6V6 power tubes, etc, etc. I'll build something cool inside this amp. It's amazing that this amp has a UL seal on the back panel! But there are other ways to realize fuse protection, of course.
In this situation, I usually use an inline fuse holder as one might see in a car radio installation and add this to the circuit AC primary. There is no external fuse holder, there is no internal fuse, as Nick B. This is the only Fender amp I've seen that does not have fuse protection of any sort. I've heard there is a 3rd version (but never seen one) - a blackface Riviera era version but I have no idea what to expect to find inside one of those amps. This is the only reason I mentioned the power tube compliment - to distinguish the various versions from one another. These are the identifying characteristics so one can tell which version he is dealing with, especially by looking at just a photo. It has 2 x 6V6 power tubes and has a slide switch very similar to a Fender blackface/silverface style bright switch for the on/off function. Version #2 has the traditional 6.3 volt light bulb, holder and jeweled lens, as I mentioned.
#Fender musicmaster bass amp schematic tv#
Version #1 uses 6AQ5 power tubes, has the aforementioned neon lamp pilot light and the on / off switch is combined with the volume control, like a 50s TV set. There are two and possibly three versions of the Musicmaster Bass amp. Here's a little Musicmaster Bass amp history.
#Fender musicmaster bass amp schematic trial#
Before I knew that, I didn't want to destroy this device by trial and error experimentation as it would be near impossible to replace and why not keep the amp original, if possible. It appears that the pilot light is a neon device wired across the AC primary (from hot to neutral), as NickB said. Sorry for the now erroneous post I didn't know I had this schematic and I hadn't looked at it in years. I've actually found a schematic deep in my Fender files for 1st version of the Fender Musicmaster Bass amp. IMHO, although it seems this amp was built to the lowest possible price point and is quite unsuitable for bass, it does breakup in a rather rather unique and nice way. That is something that needs to be addressed. Note there is no fuse or thermal limiter in this model. The indicator lamp is a neon wired between neutral and the 120V tap on the power transformer, in this case. If there is anything else you need to know, now is the time to ask before I close it up again.Įdit: Added pics - lots of overlap!. I'll take a couple of gut shots tomorrow and repost when I have them.
#Fender musicmaster bass amp schematic free#
Are you sure someone didn't replace the 6.3 v lamp and use a different supply for the lamp to free up more heater current for another tube or something?īob M.I have one of these on my bench right now. How much of the amp is left? If it's gutted you can use the iron and chassis to build whatever you want wit that tube compliment. What does it have? A neon lamp off of the mains. Thanks in advance for your on-point answers, I can't seem to find a schematic online for the 6AQ5 version of the Musicmaster Bass. My question: how is this pilot light for the 6AQ5 version wired? I don't want to ruin the part by trial and error so I though I'd ask once (or twice) and cut once. It's one of the changes made by Fender between the 6AQ5 version and the 6V6 version of this amp model, as they returned to the more typical pilot light set up when they updated this amp model to 6V6 power tubes. One of them is the pilot light which is different than the typical Fender 6.3 volt bulb and holder (and jeweled pilot lens). It has a few things still present in the chassis. I've acquired a chassis for a Musicmaster Bass amp.
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