- HITACHI V-353F OSCILLOSCOPE V-353-F - 9 Updates
| Sofa Slug <sofaslug@invalid.invalid>: Mar 19 11:20AM -0700 On 3/16/2018 5:06 PM, Fox's Mercantile wrote: > Not reading anything on the inputs > Then it will loose one channel > I guess for a start got a link for the manual? Hi Jeff, I'm obviously late to this party but I found something that might help. The following link is to a manual for the Hitachi V-152F. Judging from the front panel layout, I think it might be a stripped down 15 MHz version of your friend's scope. A schematic is included: <https://sonsofinvention.wordpress.com/2013/02/14/hitachi-v-152f-oscilloscope-operation-manual/> SS |
| Jeff Layman <jmlayman@invalid.invalid>: Mar 19 06:58PM > On Sunday, 18 March 2018 03:46:12 UTC, jurb...@gmail.com wrote: > 30 years ago I was offered a 1940s scope for £4. I said that was far too much. > ISTR they had 2 line speeds, nothing more than a pot to select vertical sensitivity, no graticule & plenty of distortion on a 2 or 3" round CRT etc. As basic as it gets. I think I paid £5 around 1963 for a Cossor 3339 (or maybe 339) from Z&I Aero in Tottenham Court Road. It weighed a ton and I never did get it to work. -- Jeff |
| Mike Coon <gravity@mjcoon.plus.com>: Mar 19 07:37PM In article <p8p191$rdt$1@dont-email.me>, jmlayman@invalid.invalid says... > I think I paid £5 around 1963 for a Cossor 3339 (or maybe 339) from Z&I > Aero in Tottenham Court Road. It weighed a ton and I never did get it to > work. Was that the one with the sloping top part of the front panel, like a Mansard roof (or something)? I remember Z&I Aero too, though I don't think I would have visited London much in the early 1960s, beyond school-leaving interviews... Mike. |
| jurb6006@gmail.com: Mar 19 01:09PM -0700 >"I'm obviously late to this party but I found something that might help. The following link is to a manual for the Hitachi V-152F." Might help. Engineers to not reinvent the wheel for every different model. Why does that display like a Wordpress page when it is in Dropbox ? I dropped Dropbox because it is not compatible with my computers and because they did away with the simple "Get Public URL" which would take a browser directly to a file and in fact could be used to host webpages, which I did. Small, but pages with links nonetheless. |
| John-Del <ohger1s@gmail.com>: Mar 19 04:17PM -0700 > >"I'm obviously late to this party but I found something that might help. The following link is to a manual for the Hitachi V-152F." > Might help. Engineers to not reinvent the wheel for every different model. > Why does that display like a Wordpress page when it is in Dropbox ? I dropped Dropbox because it is not compatible with my computers and because they did away with the simple "Get Public URL" which would take a browser directly to a file and in fact could be used to host webpages, which I did. Small, but pages with links nonetheless. Here's a V -209 and a V-302. Not much to them: https://elektrotanya.com/hitachi_v-302f_2x1mv_30mhz_oscilloscope_sm.pdf/download.html https://elektrotanya.com/hitachi_v-209_oscilloscope.pdf/download.html |
| jurb6006@gmail.com: Mar 19 10:11PM -0700 That might help. Looking at three of them can get you some insight into the engineer's head. I will do that tomorrow. Right now I am pretty well inebriated. No, actually drunk. Tomorrow. owe I thinkI amaboutto get themunchies. |
| Jeff Layman <jmlayman@invalid.invalid>: Mar 20 11:41AM On 19/03/18 19:37, Mike Coon wrote: > Mansard roof (or something)? I remember Z&I Aero too, though I don't > think I would have visited London much in the early 1960s, beyond > school-leaving interviews... Not as far as I remember. Picture of 339A here: <http://www.thevalvepage.com/testeq/cossor/339a/339a.htm> Manual here: <http://www.vmarsmanuals.co.uk/archive/4869_Cossor_339_Oscillograph_Manual.pdf> Being a Londoner, I could spend quite a bit of time in Tottenham Court Road (and Lisle Street). There were quite a few "government surplus" shops selling WWII stuff, including some USA Tx and Rx units. I remember buying something with acorn valves; IIRC, a BC-624 VHF Rx. This was for 100 - 156MHz (or should I say Mc/s in old money?!). It was bought to scrap; at the time I couldn't even find out what it needed to operate, other than it had a socket marked "dynamotor". Not much surplus around in the UK now, although a year or so ago I got an ex-Vulcan Green Satin ground radar doppler unit as a Christmas present for a Vulcan enthusiast. I wonder where it had been stored since it was scrapped in 1984? No semiconductors, by the way - just submin valves. No doubt better at surviving an EMP from a hydrogen bomb, but would there be anywhere to land? -- Jeff |
| jurb6006@gmail.com: Mar 20 06:10AM -0700 Wow. I don't get like that often... I'll play though until Fox gets back with that info. My first scope was a huge Hickok, I could barely carry it and it had this teeny about 3" screen. I was barely a teenager, maybe 13 ? I got it from the Father of an older guy I used to hang around wqith. He was incorrigible, shoplifted, got us into porn places. Made m,oney stealing new car radios and boosters from stores. One time, me at 13, he got busted and being connected he got out quick on his own recognizance. A cop comes out and said I have to follow them to the police station, and gave me the keys. Luckily I knew how to drive a stick shift. In this family you learn to drive on a stickshift. Later at his house I noticed the greyscale was off on the TV and adjusted it and his Father gave me the scope. Not triggered, and the graticule was a stick on. My Uncle was a tech specialist at IBM, came out of the air force after working on RADAR units. He gave me a set of three books about basic electronics. They stated that there are only three circuits and everything is just a buch of them put together. Rectifiers, amplifiers and oscillators. I have yet to really disprove it. Later he gave me a Tek 310 which was much better, triggered sweep, more modern (LOL)and really cool because it opened up like a book for service. I thought it was the coolest thing on the planet. Then I bought a 422 used. I used that scope for over a decade. I fixed things nobody else could fix, one of them because a waveform was 1.1 volts not 1 volt P-P. then my Uncle gave me a 561A with a horizontal plugin that had dual time base. Now THAT was cool. I could enlarge the part of a video signal with the VIR/VITS and actually see it. At one point they started putting one line each of an NTSC color bar pattern, a multiburst and a stairstep in the vertical interval and I could see it all very clearly after I figured out how to work that thing. I actually had to RTFM ! Fancy that. I am not sure, I might have had a scope before a good meter. I think I had a cheap VOM. My Father built a Heathkit VTVM and I wound up with that eventually because he didn't really take to electronics, he was a job shop machinist. Worked with the engineers sometimes and was on the team that built the first machine that produced floppy disks, and I mean the old huge ones. I got a really early start in this and at 30 could actually claim 15 years experience because I quit school to go to work. Soon I was making as much as my Parents (each not put together) At 15 I had a 1970 Olds Toronado that was too fast, and despite giving Ma half my take home pay I could afford anything I wanted, including fuel for the gas guzzler. License ? Never heard of such a thing. And now I am practically useless. Go figure. |
| etpm@whidbey.com: Mar 20 09:19AM -0700 >They have no idea what your friendship is worth to you. >They have no idea what new knowledge and techniques are worth to you. >And, analog scopes are "the bomb" in contemporary vernacular. As you teach with one you slow down the sweep so they can actually see the trace move as you connect a battery, or a speaker output from an amp. I think the study of analog scopes should be mandatory in schools at least in the beginning when they learn the basics. If you can rig up simultaneous voltage and current sensing you can demonstrate reactance, power factor and all kinds of shit in real time. You can make them understand for real rather than just able to do the math. The young need this knowledge for all that is to come, and there is no better way to instill it. I will try to save almost any DC capable scope that has triggered sweep and a decent graticule. I have a TEK 465B. When I was learning to use it I was really jazzed when I watched the discharge of some capacitance in a CNC control I was diagnosing. I don't know how well a digital scope would show that as I have no experience with digital scopes. Eric |
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