Тёмный

The Heathkit IG-1271 Function Generator 

Jeff Tranter
Подписаться 9 тыс.
Просмотров 1,9 тыс.
50% 1

In this video we examine The Heathkit IG-1271 Function Generator.

Опубликовано:

 

21 окт 2024

Поделиться:

Ссылка:

Скачать:

Готовим ссылку...

Добавить в:

Мой плейлист
Посмотреть позже
Комментарии : 13   
@youtuuba
@youtuuba 2 года назад
The 1271 was a pretty nice design, both in terms of the circuit and the ergonomics. I had one, probably purchased around 1978 (it came out in 1974, discontinued in 1987) and used it in my home lab. It always worked very well, but I found it a bit difficult to use in the more advanced circuits I was working on, since it only had the most basic waveforms. I sold mine on eBay when I acquired a reconditioned HP that I still use, which itself has been partially supplanted with a digital function generator that is even more flexible. The one thing that always bugged me about the 1271 was that Heath put a standard round LED behind the triangular shaped "arrow" opening next to the Frequency dial, and they did not include a diffuser, so instead of a nice illuminated triangle, it just had a round lighted dot in an otherwise dark triangle. There is good reason why probably most Heathkits of this so-called "Post New Look" styling are missing their combination carrying handles/kickstands.....the design sucked! The star washer Heathkit provided to give enough 'lock' to the handle/stand was too weak, and when the equipment sagged, the washer's teeth dug gouges into the aluminum case, further reducing surface area and making the 'sag' worse and worse. I think only on the oscilloscopes of that period did Heath include proper detent locks for the handles/kickstands.
@PapasDino
@PapasDino 2 года назад
Thanks Jeff, always enjoy your reviews of so many of the boxes I built back in the day and of course your Classic book is a great reference! 73 - Dino KLØS
@timothypreseau8741
@timothypreseau8741 2 года назад
Informative video. Thanks.
@itrstt66
@itrstt66 2 года назад
what its maximum output voltage?
@jefftranter
@jefftranter 2 года назад
10 volts peak-to-peak into a 50 Ohm load or greater.
@itrstt66
@itrstt66 2 года назад
@@jefftranter and what is minimum and macimum voltages?
@jefftranter
@jefftranter 2 года назад
@@itrstt66 Maximum output voltage is 10 volts peak-to-peak and the minimum would be with 70dB attenuation, about 1 uV, although in practice I don' t think it will go that low.
@itrstt66
@itrstt66 2 года назад
@@jefftranter yes i get that it outputs 10vpp, thing is that it could be 10vpp from -5v to +5v, from 0 to 10, 20 to 30. What are the voltage values for the peaks?
@jefftranter
@jefftranter 2 года назад
@@itrstt66 The output voltage is approximately centred around zero volts. There is a DC offset adjustment to set it to zero, but not all versions had this adjustment. My unit was modified to optionally switch in a capacitor so that the output was AC coupled and there would be no DC offset.
Далее
The Heathkit IG-18 Sine-Square Audio Generator
18:18
Просмотров 15 тыс.
Heathkit IG-4505 Oscilloscope Calibrator
14:14
Просмотров 1,3 тыс.
Наши дети захватили кухню!
00:59
Просмотров 230 тыс.
#007 Heathkit IG-1271 function generator repair
9:26
Просмотров 3,3 тыс.
The Bendix G15 Boots!
36:12
Просмотров 105 тыс.
Heathkit IG-102 RF Signal Generator Restoration
13:21
Просмотров 3,1 тыс.
The Heathkit SA-5010 μMatic Memory Keyer
15:48
93 Year Old Battery Charger, Will It Work? Let's See!
23:34
Every Component of a Switch Mode Power Supply Explained
23:10