| View previous topic :: View next topic |
| Author |
Message |
rjluna2
Joined: 27 Oct 2014
Posts: 1302
Location: Hiram, GA, USA
|
 Posted: Mon Mar 09, 2015 8:20 pm Post subject: |
 |
|
Cool 
I'll try to measure the resistance of the incandescent 7-segement display to determine which one is the correct display using the DMM. I'll try to draw a schematic layout if I can sometimes in the future. |
|
| Back to top |
|
 |
johnorun
Joined: 04 Apr 2008
Posts: 3364
Location: Chicago, IL- US
|
| Posted: Mon Mar 09, 2015 10:31 pm Post subject: |
|
|
| rjluna2 wrote: | Cool
I'll try to measure the resistance of the incandescent 7-segement display to determine which one is the correct display using the DMM. I'll try to draw a schematic layout if I can sometimes in the future. |
No need to waste your time. I have the schematic for this display in PDF format, but I don't think I can attach it here.
I could email it to you if you PM me your email.
_________________
My collection list (growing) http://johnorun.x86-guide.com/en/collection.html |
|
| Back to top |
|
|
johnorun
Joined: 04 Apr 2008
Posts: 3364
Location: Chicago, IL- US
|
|
| Back to top |
|
|
johnorun
Joined: 04 Apr 2008
Posts: 3364
Location: Chicago, IL- US
|
| Posted: Wed Mar 18, 2015 11:05 pm Post subject: |
|
|
I think I made a rare find today. This Intel C4308 ROM is grey ceramic with a black cap and is not listed in George Phillips Intel Collector's Guide.
Only white or purple ceramic with Gold C4308's and a P4308 are listed.
Has anyone seen one of this type?
_________________
My collection list (growing) http://johnorun.x86-guide.com/en/collection.html |
|
| Back to top |
|
|
CPUShack
Joined: 16 Jun 2003
Posts: 34259
Location: State of Jefferson, USA
|
|
| Back to top |
|
|
johnorun
Joined: 04 Apr 2008
Posts: 3364
Location: Chicago, IL- US
|
| Posted: Sun Sep 27, 2015 2:47 pm Post subject: |
|
|
I discovered a new Bubble memory module number- 7110A with support chips. I can't find mention of this number in any forum posts.
Intel 7110A Bubble Memory w. new S-Spec S9046
D7220-1Bubble memory controller
D8257-5 DMA controller
Custom numbered support chip (101135-001) w. new S-Spec S4125
D7230, 7110 Bubble memory Pulse Generator, S6859
D7242 Sense Amplifier
_________________
My collection list (growing) http://johnorun.x86-guide.com/en/collection.html |
|
| Back to top |
|
|
johnorun
Joined: 04 Apr 2008
Posts: 3364
Location: Chicago, IL- US
|
|
| Back to top |
|
|
Guest
|
| Posted: Sat Dec 05, 2015 3:09 pm Post subject: |
|
|
Cool I always wondered what the 186 sockets looked like. A little before my time.  |
|
| Back to top |
|
|
Robev
Joined: 10 Mar 2006
Posts: 3693
Location: New Zealand
|
| Posted: Sat Dec 05, 2015 3:59 pm Post subject: |
|
|
Very Nice Condition too 
_________________
The Older they are the Better they are. |
|
| Back to top |
|
|
lhf_james
Joined: 17 Oct 2008
Posts: 337
Location: Nanjing China
|
| Posted: Sun Dec 06, 2015 10:37 am Post subject: |
|
|
The INS4004 board must comes from a Pro-log programmer, as I should be the second for that auction 
Nice find though!
_________________
Tracing 4004 all over the world |
|
| Back to top |
|
|
Guest
|
| Posted: Sun Dec 06, 2015 11:50 am Post subject: |
|
|
| c3h5 wrote: | | Cool I always wondered what the 186 sockets looked like. A little before my time. |
What is a 186 socket? |
|
| Back to top |
|
|
mister_rf
Joined: 18 Jul 2015
Posts: 1094
Location: Bucharest, Romania
|
| Posted: Sun Dec 06, 2015 12:03 pm Post subject: |
|
|
| Anonymous wrote: | | c3h5 wrote: | | Cool I always wondered what the 186 sockets looked like. A little before my time. |
What is a 186 socket? |
You'll need to be able to log into your account in order to see the attachments. |
|
| Back to top |
|
|
Guest
|
|
| Back to top |
|
|
Guest
|
| Posted: Sun Dec 20, 2015 3:43 pm Post subject: |
|
|
| My latest MCM .... a DEC 57-27889-01 multi-chip-module. |
|
| Back to top |
|
|
johnorun
Joined: 04 Apr 2008
Posts: 3364
Location: Chicago, IL- US
|
|
| Back to top |
|
|
|
![[ Hidden ]](https://cdn.cpu-world.com/forum/templates/CPUWorld/images/lang_english/icon_email.gif "[ Hidden ]"){kind=icon}
