Search found 7 matches

by headsmess
Thu Oct 24, 2019 9:51 pm
Forum: DSO138mini
Topic: 0.1V sensitivity having issues.
Replies: 1
Views: 9272

Re: 0.1V sensitivity having issues.

nothing? as i say, ive got a random signal on the 0.1v setting. everything else vaguely works, but that noise is driving me mad. renders the thing virtually useless.
by headsmess
Thu Oct 24, 2019 9:50 pm
Forum: DSO 112 & 112A (Coral)
Topic: DSO112 Resources
Replies: 11
Views: 33142

Re: DSO112 Resources

why cant the schematic simply be a jpg or png or something that can be opened? yay. install winrar. yay. 12 errors when i try to open the schematic, from "corrupt or missing header file" to "no files". how useful. was great before i fried it with that oopsie i made with my guitar...
by headsmess
Thu Oct 17, 2019 7:25 am
Forum: DSO138mini
Topic: 0.1V sensitivity having issues.
Replies: 1
Views: 9272

0.1V sensitivity having issues.

im having issues with my lil 138. 10mV is fine. 1V is fine. but 0.1V is crazy. doesnt matter if its DC,AC or GND. neither if its 1x,2x, or 5... i have a signal displayed on the 0.1V. varying too fast to get decent readings... i see 5Vp-p in the midst of all the flashing digits on the 2x setting. abo...
by headsmess
Fri Nov 27, 2015 9:47 am
Forum: DSO 112 & 112A (Coral)
Topic: yay, new fw!
Replies: 4
Views: 7251

Re: yay, new fw!

have now with no success. full of bugs.

very interesting waveform produced when 100khz is fed in via test and set at 1s/div.

can count it...about 0.3hz....

am going to reflash to previous version as its now unuseable.
by headsmess
Fri Nov 20, 2015 10:49 pm
Forum: DSO 112 & 112A (Coral)
Topic: yay, new fw!
Replies: 4
Views: 7251

Re: yay, new fw!

ah ha. i knew there was an issue when i first fiddled around with this new FirmWare... time divisions. 1us displays " 0 112 " 2us displays " some weird character/undefined" 5us displays " 2-XXX " 10 us displays " TS11202-XX " i put in a 100khz test signal, and...
by headsmess
Thu Nov 19, 2015 10:45 pm
Forum: Complaints & Suggestions
Topic: dso112 test
Replies: 1
Views: 7375

dso112 test

shoot me if its already been asked before, but is there any way we could implement a few more wave forms besides just square on the test signal? a sinewave is very useful, as is a triangle. maybe a rough/fine control on frequency rather than fixed frequencies only? someone asked for RMS on the volt ...
by headsmess
Thu Nov 19, 2015 10:34 pm
Forum: DSO 112 & 112A (Coral)
Topic: yay, new fw!
Replies: 4
Views: 7251

yay, new fw!

bought a dso112 a while back, obviously... handy lil thing though not really rated for what im doing, working on tube guitar amps. just figured out how to flash the FW, that takes some doing...just be patient and persistent ;) i now find it has frequency meter, very handy, rather than the previous s...