Hello Dennis Good to see this group is so well valued and supported. Just thought I should let you know that I couldn't see my $10 on the list - paypal transaction 5UE83392FH234861P dated 31 December.

Thank you Dennis. I made a small contribution yesterday - no problems with using paypal. Your efforts in administering this group are greatly appreciated. Although I make posts only rarely, the wealth

Hello All My SG503 front panel specifies a slightly different cable number - 012-0482-00 ( I do have one of these). Not sure how this differs from the 012-0480-00 but it does have a metal rather than

Thanks Dennis and Roger The Lecroy has a 'Random Interleaved Sampling' (RIS) mode for repetitive signals which I think may be similar to 'equivalent time sampling' on the Tek 2440. I tried the RIS mod

I'm embarrassed to say that the apparent problem with the SG504 seems to have more to do with operator error than any real fault. The Lecroy DSO being used to look at the SG504 output has only recentl

Hello Dennis I must admit I don't have a proper test setup - but to answer your specific questions (in reverse order): * I wonder if the problems you are experiencing are caused by using an ordinary c

Hello Craig I had a similar experience with the 067-0625-00. Put in the 1.5V batteries, but the unit wouldn't work. I found that the 50ohm input resistor was broken - probably because someone had remo

I have an SG504 which I'm trying to get working using a replacement levelling head from Ancel. The two reference frequencies (0.05 and 6Mhz) are both within spec. However, there are problems on both o

Hello Craig I've recently had to replace the original 1.35v mercury batteries in my 067-0625-00. I used 1.5v alkaline A1PX-BP1 batteries. Readily available and they are an exact fit - but you do need

Hello Petru I've put a couple of screenshots in the photos section (under TG501 5ns 2ns). The amplitude of the 5ns waveform is 1.24v pp and well within spec. The 2ns is 0.9v pp. this appears below spe

Hello Fabio i replaced U310 (with the help of another Tekscopes member) and this solved the problem. The 20ns, 10 ns and 5ns timing is now correct. I made most of the adjustments in the manual to maxi

Hello Fabio I've taken apart the TG501 and had a closer look. There are only three socketed chips - U310, U300 and U290. U310 is part of the first divide by 5 counter. I think the sockets are the dodg

Thank you Fabio. I'll have a closer look at the TG501 over the next few days - unfortunately its difficult to access any of the components on the main board without first removing the multiplier board

Hello I'm a newcomer to this group who has fairly recently acquired a SG503, PG506 and TG501 in a TM5003 module. All of these units are working fine, apart from the TG501 which shows some odd outputs