Wow! I did not expect so many responses! Thanks everyone for the suggestions. I ended up buying two brand new Agilent 10074D 150 MHz 10:1 passive probes
off eBay for $37 USD each. Two day shipping for $4, too. (not bad!)
For anyone else wondering about these: They're not the most compact probes around; the Tektronix TPP series are really teensy, but they're perfectly fine. They have a bent wire tip, not a piece of cut sheet metal like on a lot of Tek probes. (I personally like the sheet metal tips better.) With the hook tip removed, there's no gold plating on the tip, and no, it doesn't seem replaceable.
The probes themselves are made in Japan (I wonder who actually made them?). There's only one compensation adjustment, which is where the probe attaches to the scope, not on the probe. There's also a ground ref. switch on the probe handle; not sure why you'd really want that but it's there. There's no BNC adapter included either, like with the N2862/'63. Overall I'm pretty pleased with them though; they're decent probes. Nice overall feel to them.
if you really want Agilent, there are some 10073C 500MHz probes on ebay at $55 each here http://www.ebay.com/itm/Agilent-10073C-Passive-Probe-10-1-500MHz-1-5m-10073C-hp-10073C-HP-10073C-/201270061358
For the money, that's probably a very good option. I did see those but (and this is likely stupid) $110+shipping was a little more than I wanted to spend--but again, I'm probably stupid for not paying $30 more for over three times the bandwidth.
The 54621D is a really nice scope by the way, possibly a bit lacking in bandwidth these days and also running equivalent time at the upper ends of the timebase, but it's super responsive, a great UI and simple to use. Boots super quick too.
Yeah it is really nice! I had a Tek 2430A in which the hybrids died and some other crusty 2 MHz Tek scope (can't remember the model atm) that kinda did the business, but was massive and the bandwidth just wasn't high enough. Naturally I couldn't really do digital stuff with it either.
Seems like you're stressing to get Agilent probes for your Agilent scope and I ask why bother when for the BW you need any cheap 100 MHz probe will be more than sufficient.
P6100 probes are cheap and perfectly functional and can be bought for less than US$20 a pair.
Heaps of them on eBay and Aliexpress.
Absolutely true, I was kinda stressing to get Agilent probes. Partly because my University has plenty of them and I was familiar with some models of them. I've used some Tek probes as well, but I don't remember model numbers for anything I liked off-hand.
Regarding the cheapie $10 eBay probes, I've been wary of those, but I will say that I ended up seeing a pair in person shortly after I bought those 10074Ds and I have to say, they do seem really decent! I'd still rather buy a name brand made in Japan though with some (probably) more reliable QC.
If they're not rugged enough for you I'd be suprised.
Right, that's kinda what I was trying to say: I can't really imagine one plastic-handled probe being "more rugged" than another. It's not like I'm using these in a warzone, just at a workbench
About these Hantek cheap probe, [...] the retractable hook tip can be a perfect replacement for genuine Tektronix [...] probe(s), for example P-6137 400Mhz capable. Especially the genuine Tek's hook replacement is quite pricey, like at ebay some are selling just the hook only for > 10 bucks.
I've actually seen eBay sellers that are selling clones of those Tek probe tips. (Incidentally, I just today found a bag full of 11 of brand new Tek probe tips of an older style (I think they fit the P6130 and friends) at a local surplus place that I snatched up.)
Both probemaster and avent make great us probes! I own 100mhz fixed 10:1 probes there about 30 a pop but you can find new pairs on ebay for 20ish a set. Probemaster acually makes x1 probes with 20mhz rating. Both brands sell fixed and switchable styles. If you have the cash i recomend buying fixesd x1 and x10 probes from either company.
I took a look at
Avex (I think that's what you meant) and
Probe Master, and man, I wish I didn't get impatient and buy those 10074Ds because probes from both of those companies seem really awesome for the money. The parts are so cheap! Plus I do like that they're manufactured domestically.