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#31
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Re: Analogue Scope buy or not
The kit looks OK Colin, at least you haven't got to solder in the SM parts, that would be a challenge. BOB
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#32
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Re: Analogue Scope buy or not
Yep don't want SM parts the kit is just an option I was considering on a budget
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The Blues man Turntable Rega 3 custom RB250 with ortofon 2M Blue /other goldring 1042 /WD phono2 /WD CF pre custom converted /WD psu2 /home built JE Labs Single Ended 6SL7/KT66/Speakers Frugal horns Mk1s Other turntables AR EB101/Thorns TD150mk2/Thorns TD160mk2 If you have trouble reading my posts its because I am a dyslexic member |
#33
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Re: Analogue Scope buy or not
Hi Colin et al,
Nice scope. Try to keep the TV H/V on the "OFF" position, as it is generally used for TV work. Trigger generally on "AC", but use "HF" if signal noisy, and "LF" is signal has a lot of hum. These are not set in stone as you will soon find out. Any questions stick them here and I/we will try to help out. John |
#34
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Re: Analogue Scope buy or not
Hi John All
Thanks for the tip john Complete novice here when it comes to this stuff So next in line is the function gen to use with the 20 MHz scope does the function gen need to be 20 MHz as well or is it not an issue if using a minim of 2 MHz and above OK just looking at options of a kit or a cheap used gen of ebay
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The Blues man Turntable Rega 3 custom RB250 with ortofon 2M Blue /other goldring 1042 /WD phono2 /WD CF pre custom converted /WD psu2 /home built JE Labs Single Ended 6SL7/KT66/Speakers Frugal horns Mk1s Other turntables AR EB101/Thorns TD150mk2/Thorns TD160mk2 If you have trouble reading my posts its because I am a dyslexic member |
#35
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Re: Analogue Scope buy or not
Hi Col,
We are looking at audio frequencies typically 10Hz to 20KHz but higher f are usual so we can see any problems higher up. Signal generators are usually in 2 broad bands; LF (or Audio) typically 10Hz to 1MHz, and RF from there upwards. So we want LF and they then come in 2 broad types; wien bridge oscillators and digital synthesized. 1) Wien bridge types are often just called oscillators or audio oscillators and usually offer sine and sw. 2) Digitally synthesized generators are often termed function generators and may offer other waveforms such as triangle and sawtooth. Wien bridge type tend to have lower distortion and, being older, there are quite a lot around but condition varies. For example, I've had and all are fine if you find a good one, Farnell LF1, LFM2, (from the 80s), and presently using Leader Lag120B (from the 90s). A Farnell DSG2 digitally synthesized generator was very nice and went down to fractions of a Hz but the distortion (if you later get a distortion meter to use) is worse than many oscillators. Do a few web searches on those terms and models and it will fall into place. I'm sure others will be able to suggest modern ones which work well. |
#36
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Re: Analogue Scope buy or not
Dammit Just missed a Farnell LF1 generator it went for £32
__________________
The Blues man Turntable Rega 3 custom RB250 with ortofon 2M Blue /other goldring 1042 /WD phono2 /WD CF pre custom converted /WD psu2 /home built JE Labs Single Ended 6SL7/KT66/Speakers Frugal horns Mk1s Other turntables AR EB101/Thorns TD150mk2/Thorns TD160mk2 If you have trouble reading my posts its because I am a dyslexic member |
#37
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Re: Analogue Scope buy or not
There are plenty more fish in the sea Colin.
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#38
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Re: Analogue Scope buy or not
Hi BOB
Yep or something better maybe it was a private bid that won so don’t know what they bid but i lost by a 1p
__________________
The Blues man Turntable Rega 3 custom RB250 with ortofon 2M Blue /other goldring 1042 /WD phono2 /WD CF pre custom converted /WD psu2 /home built JE Labs Single Ended 6SL7/KT66/Speakers Frugal horns Mk1s Other turntables AR EB101/Thorns TD150mk2/Thorns TD160mk2 If you have trouble reading my posts its because I am a dyslexic member |
#39
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Re: Analogue Scope buy or not
That sounds just like a Scotsman, saving every penny.
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#40
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Re: Analogue Scope buy or not
Yep but I don’t have a Tartan tamay or a ginger beard
NA, it’s my budget limits don’t really want to spend too much on old Gear plus I still have to get my Variac
__________________
The Blues man Turntable Rega 3 custom RB250 with ortofon 2M Blue /other goldring 1042 /WD phono2 /WD CF pre custom converted /WD psu2 /home built JE Labs Single Ended 6SL7/KT66/Speakers Frugal horns Mk1s Other turntables AR EB101/Thorns TD150mk2/Thorns TD160mk2 If you have trouble reading my posts its because I am a dyslexic member |