What size bulbs and sockets for digital dash?

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Cam2363
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What size bulbs and sockets for digital dash?

Postby Cam2363 » Sat Jul 14, 2018 3:41 pm

I just got a digital dash but there were no bulbs on the bottom used for illumination. Anybody know what size sockets and bulbs are needed?



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Rettax3
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Re: What size bulbs and sockets for digital dash?

Postby Rettax3 » Sun Jul 15, 2018 12:22 am

Of the several I have, I found two different sizes, probably depending on the year ('90 was the last year they were available in Berettas, so not a long use anyway). The far more common one uses the standard 194-type bulb (this is a "T-10" base) with the standard GM "PCB", or Panel Circuit Board socket. These are regularly available online or in typical parts-stores. The other type I have only seen I think twice, it is a much smaller bulb and smaller twist-in PCB socket. I THINK these are the same ones GM uses as their alternative bulbs, also commonly available. Basically, assuming you have no sockets either, if a 194 bulb would fall through it, then you almost certainly have the common type -just buy some PCB194s (also called PC194) or look for an LED drop-in alternative.


1989 SuperCharged 3800 Srs-II (First)Six-Speed GTU
1990 Turbo 3.4 5-Speed T-Type
1990 4.0L 4-Cam 32-Valve V-8 5-Speed Indy GTi (Project)
1990 Stock(!) 3.1 MPFI Auto Indy
1995 LA1/L82 4T60E Z-26
1995 3.4 DOHC Turbo 5-Speed Z-26

Cam2363
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Re: What size bulbs and sockets for digital dash?

Postby Cam2363 » Sun Jul 15, 2018 10:23 am

Rettax3 wrote:Of the several I have, I found two different sizes, probably depending on the year ('90 was the last year they were available in Berettas, so not a long use anyway). The far more common one uses the standard 194-type bulb (this is a "T-10" base) with the standard GM "PCB", or Panel Circuit Board socket. These are regularly available online or in typical parts-stores. The other type I have only seen I think twice, it is a much smaller bulb and smaller twist-in PCB socket. I THINK these are the same ones GM uses as their alternative bulbs, also commonly available. Basically, assuming you have no sockets either, if a 194 bulb would fall through it, then you almost certainly have the common type -just buy some PCB194s (also called PC194) or look for an LED drop-in alternative.



Ok Thanks! And yes there is no bulbs or sockets



Cam2363
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Re: What size bulbs and sockets for digital dash?

Postby Cam2363 » Wed Jul 18, 2018 5:03 pm

Rettax3 wrote:Of the several I have, I found two different sizes, probably depending on the year ('90 was the last year they were available in Berettas, so not a long use anyway). The far more common one uses the standard 194-type bulb (this is a "T-10" base) with the standard GM "PCB", or Panel Circuit Board socket. These are regularly available online or in typical parts-stores. The other type I have only seen I think twice, it is a much smaller bulb and smaller twist-in PCB socket. I THINK these are the same ones GM uses as their alternative bulbs, also commonly available. Basically, assuming you have no sockets either, if a 194 bulb would fall through it, then you almost certainly have the common type -just buy some PCB194s (also called PC194) or look for an LED drop-in alternative.


Got some of the bulbs, and they do not fit. They are 194 bulbs but they are too big. Any ideas?



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Rettax3
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Re: What size bulbs and sockets for digital dash?

Postby Rettax3 » Wed Jul 18, 2018 10:39 pm

Someone here likely knows for sure...
Markings on the bottom of the smaller-type bulb 'socket' says "12V 3W ALBA", so obviously 12-volt 3-watt to start with. Socket hole is ~3/8" diameter, plus the little tab-holes on either side. Interestingly, the original bulbs are soldered to the socket's contact-tabs. The plastic of the socket is really brittle from heat and age on mine, obviously. I searched a little, and found nothing comparable. You could TRY a PC37, it might fit, but it won't be bright enough. If you can solder, you could either direct-solder some 194 bulbs to the socket-rail in the cluster, OR install some LED strip-lights along the bottom instead. My '88 Katana 1100 was modified with the strip-lights, looks awesome, more even lighting and has that LED 'cool' white look.
Beretta digital bulb type2 1a.jpg
Brittle plastic didn't like my pliers!
Beretta digital bulb type2 2a.jpg
About 3/8 inch hole -just under the 194 bulb's diameter.

These clusters are really cool in many aspects -the orange backlighting lenses can be removed and replaced (the Corsica mod I posted pics of they went with green, and I installed a white fibrous material in place of the lenses on my Yellow Indy, with the stock incandescent bulbs it has a real nice warm golden glow. My GTU is going to get white/red switchable LEDs, and one day I will likely put full-on RGB LEDs in one of them with a white lens to have any color I want at the turn of a dial. Heck, you can even put pictures behind them instead of a lens, and snippets of it would become visible as the segments activate... Oh, the possibilities!
Attachments
Beretta digital bulb type2 4a.jpg
Wired!
Beretta digital bulb type2 3a.jpg


1989 SuperCharged 3800 Srs-II (First)Six-Speed GTU
1990 Turbo 3.4 5-Speed T-Type
1990 4.0L 4-Cam 32-Valve V-8 5-Speed Indy GTi (Project)
1990 Stock(!) 3.1 MPFI Auto Indy
1995 LA1/L82 4T60E Z-26
1995 3.4 DOHC Turbo 5-Speed Z-26

Cam2363
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Posts: 88
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Re: What size bulbs and sockets for digital dash?

Postby Cam2363 » Wed Jul 18, 2018 10:45 pm

Rettax3 wrote:Someone here likely knows for sure...
Markings on the bottom of the smaller-type bulb 'socket' says "12V 3W ALBA", so obviously 12-volt 3-watt to start with. Socket hole is ~3/8" diameter, plus the little tab-holes on either side. Interestingly, the original bulbs are soldered to the socket's contact-tabs. The plastic of the socket is really brittle from heat and age on mine, obviously. I searched a little, and found nothing comparable. You could TRY a PC37, it might fit, but it won't be bright enough. If you can solder, you could either direct-solder some 194 bulbs to the socket-rail in the cluster, OR install some LED strip-lights along the bottom instead. My '88 Katana 1100 was modified with the strip-lights, looks awesome, more even lighting and has that LED 'cool' white look.
Beretta digital bulb type2 1a.jpg
Beretta digital bulb type2 2a.jpg

These clusters are really cool in many aspects -the orange backlighting lenses can be removed and replaced (the Corsica mod I posted pics of they went with green, and I installed a white fibrous material in place of the lenses on my Yellow Indy, with the stock incandescent bulbs it has a real nice warm golden glow. My GTU is going to get white/red switchable LEDs, and one day I will likely put full-on RGB LEDs in one of them with a white lens to have any color I want at the turn of a dial. Heck, you can even put pictures behind them instead of a lens, and snippets of it would become visible as the segments activate... Oh, the possibilities!


I can solder, so that wont be an issue. I have some of the green and blue ones that were too large in there right now with wires running to power. It does look good. What I might do is connect an RGB led strip I have into there. That might be really cool if I can get it to work. But I might just solder some lights in there. Ill have to wait until the rest of my LEDS come in.

From some other research, I believe they are the 74/T5 type. Ill have to purchase that and try those. They seem to be the correct 3/8in size.

Also seems to be 37/73 So you were correct before with the 73 and are still correct with the 37




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