Most, not all.
Starting from the left of the Tek 7834 on the cart:
hp 3575A Gain Phase meter, it's long gone. It was replaced with a early hp 3570A & 3330B network analyzer rig, eventually replaced by hp 3577A, most recently hp 3577B.
Krohn Hite 4100A push button oscillator, long gone. It had low distortion and was a good pushbutton freq select oscillator.
On the Tek Lab3 cart, 7834-2x 7A19 with delay option, 7B80, 7B85. Still have this and never needed any service all those decades. During this time this O'scope was used to look at one shot nanosecond events related to timing for 16/22 bit sampling A/D converters made by Analogic as part of a project I was working back then (a really good DSO does a better job today). The timing was critical as there were more than one of these converters involved. These measurements involved sub nanosecond & microvolt performance. Until one works with stuff like this, the appreciation of what it takes to make systems like this work really well can be easily taken for granted.
Below the Tek 7834, Tek TM504 with DM501A, FG501A, PG501 and freq counter. The frequency counter is long gone, the others share a TM503 as needed. None of these needed any more than normal cal-check over decades of service.
The bottom lives the other Tek 7000 plug-ins. 7A14 current probe plug-in, 7A22, 2x 7A26, 7A13 all still in service to this day. In the Lab3 cart drawer is a pile-O-probes and stuff.
Lurking behind the Tek lab3 cart is a Tek 547, 1A4, 1A5, 1A7A, P6042 that would be used when the 7834 was not needed to both would appear if both were needed.
On the bottom shelf:
2x hp 3400A (TRMS voltmeter), hp 400E (AC voltmeter), hp 427A, hp (volts-ohm meter), hp 4332A (LCR meter), hp 5210A (freq meter used as a FM discriminator for the 141T), Keithley 175 DVM, Krohn Hite 2200 ( used a LOT, output stages abused-died more than once and shorted tant caps on occasion) all still in service today except for the hp 3565A which is parked.
Top shelf:
hp in-house test fixture isolated variac with meters for current & volts and 0-140VAC + 0 to 280VAC outlets. These were never sold but used within hp as needed. hp 3569B DVM have several of these, the AC volts goes to 10Mhz and more (parked in storage with the others). On the end is a Boonton 71A LC meter, full scale from 1pF to 1000pF, 1uH to 1000uH has DC bias at the test terminals and meter off to allow use with a recorder or system The test freq is 1Mhz, very accurate, stable over time and used fire bottles. This 71A has never given any trouble over all these decades of service. There is a hp 8600A marker/counter used with the hp8601A, both are long gone.
In the foreground of the table top is a hp 141T system with several plug-ins from 20 Hz to 18.6 Ghz, tracking generator (not in this pix). The 141T system (cost more than the Tek 7834 system on the cart back then) is long gone, replaced with hp 8569A and recently 8566B. There was a hp 8410A network analyzer in process and a Boonton 250A that does not appear as it was too far off to the side.
There was a LOT of test gear, parts and much more not seen in this image.
Today, much has been passed on or upgraded as technology and work related requires it.
This was one of the perks of being in Silicon Valley back in those days and having family at hp. Back then computing were institutional items, Apple was just a bud, Silicon chip fab was cranking full till. National Semi was the analog leader, Linear Technology was just starting, Fairchild was nearly dead, hewlett packard in it's hey-day, Tek in it's hey-day, Wavetak, Systron Donner and a host of other instrumentation companies were really going. Most of SV was military, RF-microwave, Instrumentation or chip fab. The Foothill Flea was were all this stuff and more would appear as a parking lot sale. Land and houses were still reasonable, Fruit Orchards were still selling fruit at their side walk stands..
Much of this stuff was purchased at the Foothill Flea, hp employee auctions, local surplus dealers.. There was just SO much of this back then. Many of the instruments needed fixing in various ways. So much can be learned from fixing and keeping this stuff in service and in cal. I have lost count of what instruments have passed my way over the years. There is a file cabinet full of service manual of most instruments that have passed my way over the years. Documentation was gold back then before most of these service manuals were on the web today.
Image was made using a Sinar 5x7 view camera, think the lens was a Rodenstock 115mm f6.8 Grandagon, film is Kodak T-Max 400. Hint to this is found on the upper right hand corner as sheet film notches noting film type, image proportions would identify this image as 5x7.
Been at this for too long.
Bernice
How much of that do you still own?
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