This is for a hagerman bugle 2, that i have modified. the biggest mod is that it now runs off of 2x12V NiCad battery packs. It is dead silent.
The front has an on/off switch. When its off, you can press the button to get a readout on the battery's voltage. Anything around 24V is fine.
Opamps are LM4562, i dont know if they were the original specified opamps. They are DIP8 pkg, so should be easy to roll your own.
Charging the batteries, when needed, is simple. Open up the case, the batteries have easy quick connectors. Just hook it up to your charger (not included, but they're inexpensive) and charge one at a time. See circled section in the picture. The current draw is small, so you dont need to charge often.
soldering isn't my best work, so I'm open to offers.
$125/open to offers
The front has an on/off switch. When its off, you can press the button to get a readout on the battery's voltage. Anything around 24V is fine.
Opamps are LM4562, i dont know if they were the original specified opamps. They are DIP8 pkg, so should be easy to roll your own.
Charging the batteries, when needed, is simple. Open up the case, the batteries have easy quick connectors. Just hook it up to your charger (not included, but they're inexpensive) and charge one at a time. See circled section in the picture. The current draw is small, so you dont need to charge often.
soldering isn't my best work, so I'm open to offers.
$125/open to offers