Got one in good working order but without the probes and cables. I'm concerned about the output jacks to the scope. I guess I'll have to fabricate something because I expected them to be standard BNC. I've looked on the bay for them but no luck so far. Does anyone have any suggestions on where I might find some or any suggestions on fabrication? Thanks,

Is this what you're looking for?
https://www.ebay.com/itm/325621472976?chn=ps&norover=1&mkevt=1&mkrid=711-117182-37290-0&mkcid=2&mkscid=101&itemid=325621472976&targetid=1529493963742&device=c&mktype=pla&googleloc=9030209&poi=&campaignid=19851828444&mkgroupid=145880009014&rlsatarget=pla-1529493963742&abcId=9307249&merchantid=101712974&gclid=CjwKCAjwvpCkBhB4EiwAujULMlgTOUtpKIg7umK-19TXnDA9J62lZGbiAWaTMkepUTfZgr1fz2musBoCl1oQAvD_Bw E

The only real probe is the demodulator probe. I had one demod probe before I had my 415 and I robbed the mike cable off it for something else....So when I got my 415 I just converted everything to BNC...It was surprisingly easy.

Is this what you're looking for?
https://www.ebay.com/itm/325621472976?chn=ps&norover=1&mkevt=1&mkrid=711-117182-37290-0&mkcid=2&mkscid=101&itemid=325621472976&targetid=1529493963742&device=c&mktype=pla&googleloc=9030209&poi=&campaignid=19851828444&mkgroupid=145880009014&rlsatarget=pla-1529493963742&abcId=9307249&merchantid=101712974&gclid=CjwKCAjwvpCkBhB4EiwAujULMlgTOUtpKIg7umK-19TXnDA9J62lZGbiAWaTMkepUTfZgr1fz2musBoCl1oQAvD_Bw E

That’s it!

Or use these amphenol to BNC adapters. Hmm. Looks like you would need to cut down the center pin?
https://www.ebay.com/itm/125955958203

Or use these amphenol to BNC adapters. Hmm. Looks like you would need to cut down the center pin?
https://www.ebay.com/itm/125955958203

Those look like PL-259 which isn't compatible with the old microphone connectors used on the B&K 415.

Those mic connectors aren't hard to change to BNC. Just a hot lead solder joint and a nut for ground and mechanical mounting. I had some spare BNC connectos off of a junked SS monitor and they bolted right in.

Those mic connectors aren't hard to change to BNC. Just a hot lead solder joint and a nut for ground and mechanical mounting. I had some spare BNC connectos off of a junked SS monitor and they bolted right in.

Indeed! :thmbsp:
I have changed the connector on several vintage instruments that I use, panel-mount BNC connectors are readily available and inexpensive.

https://www.amazon.com/QMseller-Chassis-Socket-Connectors-Adapter/dp/B07FB39S1L/ref=sr_1_3?crid=ATBRHXJ6VUU2&keywords=bnc+connectors+panel+mount&qid=1686592309&sprefix=bnc+connectors+p%2Caps%2C330&sr=8-3

jr

Aren't the mounting holes smaller?

Aren't the mounting holes smaller?

IIRC they were both the same size (roughly the diameter of a standard potentiometer mounting hole IIRC). I remember literally unsoldering and unbolting mine then bolting in the BNC connectors (as is) and soldering the wire....It was surprisingly easy.

Aren't the mounting holes smaller?

I had no problem mounting the BNC connectors on Heathkit equipment...no drilling, no shimming, they just bolted right in. Possibly other manufacturers equipment could be different :scratch2:

jr

I ordered the female BNC connectors to convert them. Following Bobs series on alignment very closely!